Operation Manual

TM
3DR Support

Contact 3DR Support for questions and technical help.

online: 3dr.com/support 

email: support@3dr.com 

call: +1 (858) 225-1414 (direct)

 +1 (855) 982-2898 (toll free in the US and Canada)

Support line hours:

Mon-Fri 8 am to 5 pm PST 

3D Robotics (3DR)

1608 4th Street, Suite 410 

Berkeley, CA 94710

Tel. +1 (858) 225-1414

3dr.com

Solo Operation Manual DRAFT A 

© 2015 3D Robotics Inc.

SOLO is a trademark of 3D Robotics, Inc. 

GOPRO, HERO, the GOPRO logo, and the GoPro Be a HERO logo are 

trademarks or registered trademarks of GoPro, Inc.
Contents

1 Introduction 1

1.1 System Overview 1

1.2 Aircraft Overview 2

1.3 Controller Overview 3

1.4 Operating Parameters 4

1.5 Autopilot 5

1.6 Propulsion 5

1.7 Electronic Speed Controllers 6

1.8 Remote Command and Control 7

2 Setup 8

2.1 In the Box 8

2.2 Battery 8

2.3 Controller 9

2.4 Propellers 10

2.5 Camera 10

2.6 Mobile App 12

3 Safety 16

3.1 Location 16

3.2 Environmental Awareness 16

3.3 Visual Line of Sight 16

3.4 Flight School 16

3.5 Propellers 17

3.6 Home Position 17

3.7 Altitude Limit 17

3.8 Emergency Procedures 18

3.9 Flight Battery 19

3.10 Controller 19

4 Operating Procedures 20

4.1 Preflight Checklist 20

4.2 Takeoff 20

4.3 Landing 21

4.4 Return Home 22

4.5 In-Flight Data 22

4.6 Joystick Control 23

4.7 App Interface Overview 26

5 Smart Shots 27

5.1 Selfie 27

5.2 Cable Cam 28

5.3 Orbit 29

5.4 Follow 31

6 Alerts 32

6.1 Preflight Errors 32

6.2 In-Flight Errors 33

7 Maintenance 36

7.1 Controller Battery Replacement 36

7.2 Calibrations 36

7.3 Pairing 37

7.4 Legs 38

7.5 Battery Tray 41

7.6 Motors 42

7.7 Inspection Schedule 44

8 Appendix 45

8.1 Specifications 46

8.2 Warranty 46

8.3 Regulatory Compliance 47
Figures

Figure 1.1.3.1: Solo System Context Diagram 1

Figure 1.2.4.1: Solo Exterior Overview 2

Figure 1.3.9.1: Antenna Configuration 3

Figure 1.3.10.1: Controller Schematic Diagram 4

Figure 1.4.10.1: Solo Operating Parameters 4

Figure 1.5.10.1: Solo Onboard Sensors Table 5

Figure 1.6.10.1: Solo Motor Order 5

Figure 1.6.10.2: Solo Motor Specifications Chart 6

Figure 1.6.10.3: Solo Motor Specifications Diagram 6

Figure 1.7.10.1: Electronic Speed Controller 6 

Figure 1.8.10.1: Electronic Speed Controller Chart 7

Figure 2.1.10.1: Solo Parts 8

Figure 2.2.1.1: Solo Battery Charging 8

Figure 2.2.2.1: Powering Solo 8

Figure 2.3.1.1: Controller Charging 9

Figure 2.3.2.1: Power On Controller 9

Figure 2.4.1.1: Attach Propellers 10

Figure 2.5.1.1: Attach Camera 11

Figure 2.5.2.1: Camera Configuration Process 11

Figure 2.6.2.1: Connect to Solo Link 12

Figure 2.6.3.1: App - Settings Menu Access 12

Figure 2.6.3.2: SoloLink Wi-Fi In-App Network Settings 13

Figure 2.6.4.1: Controller Preflight Update Prompt 13

Figure 2.6.4.2: Solo App Update Process 13

Figure 2.6.4.3: Controller Updating Display 13

Figure 2.6.4.4: Controller Updated Display 14

Figure 2.6.4.5: Controller - Solo Update Display 14

Figure 2.6.4.6: Update Success 14

Figure 2.6.5.1: Viewing Video on the App 15

Figure 3.4.5.1: App Flight School 15

Figure 3.7.5.1: Controller Maximum Altitude Warning 16

Figure 3.7.5.2: App - Altitude Limit 16

Figure 3.8.5.1: Motor Shutoff Displays 17

Figure 4.2.1.1: Controller Start Motors Prompt 19

Figure 4.2.2.1: Controller - Takeoff Prompts 20

Figure 4.3.2.1: Controller - User-Initiated Landing 20

Figure 4.4.2.1: Return Home Behavior 21

Figure 4.5.2.1: Controller In-Flight Data Display 21

Figure 4.6.2.1: Controller Left Joystick 22

Figure 4.6.2.2: Throttle Joystick Behaviors 22

Figure 4.6.2.3: Yaw Joystick Behavior 23

Figure 4.6.2.4: Controller Right Joystick Controls 23

Figure 4.6.2.5: Pitch Joystick Controls 24

Figure 4.6.2.6: Roll Joystick Controls 24

Figure 4.7.2.1: App - Main Interface 25

Figure 4.7.2.1: App - Shot List 25

Figure 5.1.2.1: Selfie Path and Settings 26

Figure 5.1.1.1: App - Selfie Activation 26

Figure 5.1.2.1: Selfie Control 27

Figure 5.1.3.1: App - Selfie Settings 27

Figure 5.2.1.1: App - Cable Cam Setup 27

Figure 5.2.2.1: Cable Cam Controls 28

Figure 5.2.3.1: App - Cable Cam Settings 28

Figure 5.3.1.1: App - Orbit Setup 29

Figure 5.3.2.1: Orbit Controls 29

Figure 5.3.3.1: App - Orbit Settings 29

Figure 5.4.1.1: App - Follow Setup 30

Figure 5.4.2.1: Follow Controls 30

Figure 5.4.3.1: App - Follow Settings 31

Figure 6.1.1.1: Controller - Calibration in Progress Alerts 31

Figure 6.1.1.2: Controller - Uneven Surface Alert 31

Figure 6.1.1.3: Controller - Re-Calibration Required Alerts 31

Figure 6.1.1.4: Controller - Calibration Error Alert 32

Figure 6.1.2.1: Controller - Service Alerts 32

Figure 6.2.1.1: Controller - Altitude Limit Alert 32

Figure 6.2.2.1: Controller - App Connection Alerts 33

Figure 6.2.3.1: Controller - Controller Disconnected Alert 33

Figure 6.2.3.2: Controller - Controller Signal Alerts 33

Figure 6.2.4.1: Controller - GPS Signal Alerts 34

Figure 6.2.5.1: Controller - Low Battery Alerts 34

Figure 6.2.5.2: Controller - Critical Battery Alert 34

Figure 6.2.6.1: Controller - Controller Battery Alerts 34

Figure 7.1.6.1: Controller Battery Installation 35

Figure 7.2.1.1: App - Compass Calibration Setup 35

Figure 7.2.1.2: App - Compass Calibration Procedure 36

Figure 7.2.2.1: App - Level Calibration 36

Figure 7.3.2.1: Solo Pair Button 36

Figure 7.3.2.2: Controller Pairing Procedure 36

Figure 7.4.2.1: Legs Contents 37

Figure 7.4.1.1: Standard Leg Replacement Process 37

Figure 7.4.2.1: Detaching the Antenna from the Leg 38

Figure 7.4.2.2: Attaching a New Leg with an Existing Antenna 38

Figure 7.4.2.3: Attaching an Existing Antenna to a New leg 38

Figure 7.4.3.1: Compass Connector on Mainboard 39

Figure 7.4.3.2: Insert New Leg with Compass 39

Figure 7.5.1.1: GPS Cover Removal 40

Figure 7.5.2.1: Battery Tray Removal 40

Figure 7.5.2.2: Battery Tray Detachment 40

Figure 7.6.2.1: LED Cover Removal 41

Figure 7.6.2.2: Motor Pod Removal 41

Figure 7.6.2.3: Motor Pod Disconnection 42

Figure 7.6.2.4: Motor Pod Connection 42

Figure 7.6.2.5: Motor Pod and LED Cover Attachment 42

Figure 7.7.1.1: Solo Maintenance Schedule 43
1

1 Introduction

Solo is a lightweight, easy-to-use quadcopter optimized for capturing aerial video. This section provides an overview 

of the 3DR Solo system.

1.1 System Overview

The 3DR Solo system includes the Solo quadcopter, Solo controller, “3DR Solo” app, and the human operator. 

The operator interacts with the controller and app on the ground, and the controller communicates with the Solo 

quadcopter during flight.

1.1.1 Solo Quadcopter

Solo is a small unmanned aerial vehicle powered by four brushless motors and four propellers. Solo’s onboard 

computers control navigation, attitude, and communications in flight while sending real-time telemetry and video 

output and receiving control inputs over the 3DR Link secure Wi-Fi network. Solo is optimized for capturing aerial 

video using a GoPro® HERO camera.

1.1.2 Controller

The controller provides controls and displays in-flight data on a full-color screen. Using twin long-range dipole 

antennae, the controller acts as the central hub for all communication on the 3DR Link network, receiving all 

communications from Solo and the app, forwarding telemetry outputs to the app, and controlling the transmission of 

all control inputs to Solo.

1.1.3 App

The “3DR Solo” app outputs a live video stream from an onboard GoPro® camera to an Android or iOS device. The 

operator can use the app to view the live video with overlaid telemetry and access a simplified graphic interface 

for controlling Solo’s advanced functions. The app also connects to the 3DR Link network to receive video and 

telemetry outputs and send control inputs.

Figure 1.1.3.1: Solo System Context Diagram

Video output

Telemetry output

Control input

Operator

3DR Solo

Controller

3DR Solo

3DR Solo

App

Ground Air

3DR Link 

Secure WiFi 

Network
2

1.2 Aircraft Overview

1.2.1 Smart Battery

The battery connects to Solo’s battery bay. Solo’s power button is located on the battery; Solo can only be powered 

when the battery is connected. 

1.2.2 Motors and Propellers

Solo’s arms are labeled one through four on the ends of the arms. Motors on arms #1 and #2 spin counterclockwise 

and use clockwise-tightening propellers with silver tops. Motors on arms #3 and #4 spin clockwise and use 

counterclockwise-tightening propellers with black tops. 

1.2.3 Orientation LEDs

Each arm contains an LED for ground-to-air directional awareness; the two front arms (#1 and #3) display white, and 

the two rear arms (#2 and #4) annunciate red. This LED scheme mimics the headlight and taillight style of a car for 

easy association by any operator.

1.2.4 Fixed Camera Mount and HDMI Cable

Solo includes a GoPro® The Frame fixed mount to mount a GoPro® HERO camera. The HDMI cable connects to 

the GoPro® to output video during flight.

Figure 1.2.4.1: Solo Exterior Overview

Silver-top propeller

Power button

Battery

Rear orientation LEDs

Black-top propeller

Motor

Arm numbering

Front orientation LEDs

Fixed camera mount

HDMI cable

Height: 10.2”

Motor-to-motor: 18.1”

Weight (no camera): 3.3 lbs.
3

1.3 Controller Overview

1.3.1 Mobile-Device Holder

Mount an Android or iOS device to run the Solo app and effortlessly integrate the app into the controller’s 

operational flow. A user-supplied smartphone or tablet is required to initialize Solo.

1.3.2 Joysticks

The controller’s left and right joysticks provide direct manual control of Solo and physical control mechanisms for 

using automated Smart Shots. 

1.3.3 Screen

The controller’s full-color screen provides prompts for correct operation of Solo, live in-flight data, and control over 

automated Smart Shots.

1.3.4 Power Button

The power button provides a quick check of the controller’s power level when pressed once and powers on the 

controller when held. The controller provides vibration feedback to indicate that the power-up is successful.

1.3.5 Fly Button

The Fly button lets you control Solo’s main flight functions: starting motors, takeoff, land, and activating standard 

flight.

1.3.6 Return Home

The Return Home button allows you to end your flight automatically at any point by returning Solo to its original 

launch point and landing.

1.3.7 Pause Button

The Pause button is Solo’s emergency air brake. Press Pause to stop Solo and hover in place.

1.3.8 Option Buttons

The A and B buttons change functionality based on where you are in the operational flow. The screen will show 

the currently assigned functions of A and B at all times. You can program A and B to specific functions using the 

controller. By default, the A button is assigned to Cable Cam and the B button is assigned to Orbit.

1.3.9 Antennas

The controller’s long-range antennas communicate with Solo during flight. As a general rule, configure the antennas 

so they are pointing skyward and at 20 degree angles for the strongest signal. 

Figure 1.3.9.1: Antenna Configuration

20°
4

1.3.10 Gimbal Controls

The paddle, buttons, and dial on the top of the controller are used to control the Solo Gimbal. They can also be used 

in some Smart Shots.

Figure 1.3.10.1: Controller Schematic Diagram

1.4 Operating Parameters

The following operating parameters apply to Solo. Always operate Solo within these parameters. Solo’s performance 

and behaviors are not guaranteed when conditions violate the parameters listed below.

Figure 1.4.10.1: Solo Operating Parameters

 *Flight time varies with payload, wind conditions, elevation, temperature, humidity, flying style, 

 and pilot skill. Listed flight time applies to elevations less than 2,000 ft above sea level.

 **Depending on environmental conditions

Estimated flight time up to 25 minutes*

Maximum altitude 328 ft. (100 m) above ground level

Range .5 miles** (.8 km)**

Payload capacity 1.1 lbs. (500 g)

Cruise speed 5 mph (2.5 m/s)

Maximum speed 55 mph (24.5 m/s)

Wind speed limitation 25 mph (11 m/s)

Operating temperature 32° F - 113° F (0° C to 45° C)

Operating relative humidity 0-85% RH

Max altitude above sea level 10,000 ft. (3,000 m)

Antennae

Mobile-device holder

Gimbal controls

Joysticks

Screen

Pause

Return home

Fly

Power

Options
5

1.5 Autopilot

Solo uses a Pixhawk 2 autopilot running APM:Copter software. APM:Copter is open-source flight control based 

on the MAVlink communication protocol and part of the ArduPilot project. Pixhawk 2 runs an ARM Cortex-M4 

STM32F427 processor with 2 MB of flash memory and 256 KB of RAM. Combined with an array of CAN, I2C, SPI, 

PWM, and UART interfaces, Pixhawk 2 uses a suite of onboard sensors to calculate Solo’s orientation and motion in 

flight. This data is input into APM:Copter’s inertial navigation and position estimation algorithms and combined with 

control inputs to send commands to Solo’s propulsion system.

Figure 1.5.10.1: Solo Onboard Sensors Table

1.6 Propulsion

Solo uses four brushless 880 Kv motors and four self-tighteing propellers for propulsion. For control and 

aerodynamic efficiency, two motors spin clockwise and two motors spin counterclockwise. Navigation in the air is 

achieved by mixing propulsion of the four motors to actuate flight control along the roll, pitch, and yaw axes. 

Each of the four motors is numbered by the marking on the arm. These numbers correspond to the autopilot 

calculations for these commands and are used for indicating motor replacement procedures. Each motor is 

controlled by an ESC (Electronic Speed Controller) that regulates the rotation of the motors to achieve the speed 

commanded by the autopilot.

Figure 1.6.10.1: Solo Motor Order

Location Sensor Manufacturer / Part Number Data Type

Pixhawk 2 FMU Accelerometer InvenSense / MPU6000 Orientation

Pixhawk 2 FMU Gyroscope InvenSense / MPU6000 Motion

Pixhawk 2 FMU Magnetometer Honeywell / HMC 5983 Cardinal direction

Pixhawk 2 FMU Barometer Measurement Specialties / MS5611 Altitude

Pixhawk 2 Stabilized IMU Accelerometer InvenSense / MPU6000 Orientation

Pixhawk 2 Stabilized IMU Gyroscope InvenSense / MPU6000 Motion

Pixhawk 2 Stabilized IMU Barometer Measurement Specialties / MS5611 Altitude

Pixhawk 2 Stabilized IMU Accelerometer STMicroelectronics / LSM303D Orientation

Pixhawk 2 Stabilized IMU Magnetometer STMicroelectronics / LSM303D Cardinal direction

Pixhawk 2 Stabilized IMU Gyroscope STMicroelectronics / L3GD20 Motion

3DR Solo GPS GPS u-blox / NEO-7N Longitude & latitude

3DR Solo GPS GPS patch antenna Taoglas / GP.1575.25.4.A.02 Longitude & latitude

3DR Solo Compass Magnetometer Honeywell / HMC 5983 Cardinal direction

03 01

02 04
6

Kv 880 RMP/V Bearings Double, R2-ZZ/R25-ZZ

Continuous Current 18 A Max Mount Pattern M3 x 4ea. - 16 mm x 19 mm

Continuous Power 260 Watts Motor Weight 68 g

Maximum Efficiency > 80% Propeller Size Up to 11”

Voltage Range 11.1 - 14.8 V Motor Timing 22 - 30 deg

Figure 1.6.10.2: Solo Motor Specifications Chart

Figure 1.6.10.3: Solo Motor Specifications Diagram

1.7 Electronic Speed Controllers 

An ESC (Electronic Speed Controller) is dedicated to each motor to apply power and change RPM as directed by 

the autopilot. The ESCs used on the Solo feature dynamic PWM and motor advance timing algorithms and 400 Hz 

refresh rate for high-speed response to flight control commands.

Refresh Rate 400 Hz Voltage Range 11.0 - 17.0 V

Maximum Current 25A (5s burst) Weight 32 g (54g with wires/bullets)

Maximum Power 425 W (5s burst) ESC Lead 30 AWG, 8-wire DF13

Continuous Current 14+ A Power Leads 18 AWG, 200 deg C

Continuous Power 238+ W Motor Leads 18 AWG, 200 deg C

Figure 1.7.10.1: Electronic Speed Controller Chart 
7

1.8 Remote Command and Control 

Typically, with UAS radio systems the safety pilot (R/C) control, GCS telemetry data and video data are streamed 

separately. The Solo Link combines these three functions into one radio frequency (RF) stream. This is possible with 

the high bandwidth capability the Wi-Fi radio modem provides. 

Figure 1.8.10.1 describes the RF link functionality and operating frequency.

Figure 1.8.10.1: Radio Frequency Matrix 

Description Transmission Device – Power 

Magnitude Function Frequency - Bandwidth

Solo Link v 1.0 Radio 

Frequency Broadcast

2x2 2.4Ghz 802.11n Wi-Fi at 

25dBm transmit power per 

chain with WPA2 security

480p/720p/1080p video 

downlink with integrated 

telemetry and RC control

2.40 - 2.48Ghz – 20 MHz
8

2 Setup

This sections covers everything you need to set up Solo out of the box.

2.1 In the Box

Solo includes the quadcopter, controller, propellers (four plus two spares), Solo charger, and controller charger.

Figure 2.1.10.1: Solo Parts

2.2 Battery

Solo is powered by the rechargeable Solo Smart Battery that provides up to 25 minutes of flight time per full charge. 

(Keep in mind that flight time depends on payload, wind conditions, elevation, temperature, humidity, flying style and 

pilot skill, so the actual flight time may vary.) As a lithium polymer battery, the Solo Smart Battery requires specific 

handling practices to ensure safe operation and prevent accidents. For more information about battery safety, see 

Section 3.9

2.2.1 Charging

The level of the battery is indicated by the lights below the power button. Press the power button once to display 

the current power level. The Solo battery ships with approximately 50% charge, so charge fully before your first 

flight for maximum flight time.

Remove the battery from Solo before charging by holding the release button and sliding the battery towards the 

back of Solo. Charge the battery using the designated Solo charger only; using a different charger can damage the 

battery or cause a fire. Charge the battery in conditions between 32° F and 113° F.

To charge the battery, connect the Solo charger to the battery and a wall outlet. While charging, the indicator lights 

pulse at the current level, and when fully charged, the lights turn off. There is an additional indicator on the battery 

charger that turns from red to green when the battery is fully charged. The battery takes approximately 1.5 hours to 

charge to 100%.

Solo Three silver-top props

& three black-top props

Controller

Solo charger

Controller charger
9

Figure 2.2.1.1: Solo Battery Charging

2.2.2 Powering

To power Solo, insert the battery into Solo’s battery bay and slide the battery forward until it clicks into place. Press 

and hold the battery power button to turn on Solo. When Solo powers on, the battery will display an LED animation 

and you will hear the startup tone. Only power Solo using the designated 3DR Solo Smart Battery; using a different 

battery can permanently damage Solo.

Figure 2.2.2.1: Powering Solo

Charge indicator

Charge indicator

Make sure Solo is level before powering on and keep Solo still during 

power up and while the sensors initialize. Moving Solo during this 

process causes the sensors to calibrate incorrectly and can create a 

preflight error or affect in-flight performance.
10

2.3 Controller

The Solo controller includes a pre-installed rechargeable lithium ion (Li-ion) battery.

2.3.1 Charging

Charge the controller using the designated controller charger only; using a different charger can damage the 

controller or cause a fire. Charge the controller in conditions between 32° F and 113° F.

To charge the controller, connect the controller charger to the barrel jack on the side of the controller and to a 

wall outlet. To check the battery level of the controller, press the power button. A fully charged controller lasts for 

approximately 6 hours. Always check the controller’s battery level before you fly, and recharge when prompted by 

the controller. The controller takes approximately 3 hours to charge to 100%.

Figure 2.3.1.1: Controller Charging

2.3.2 Powering

To power on the controller, press and hold the controller power button until you receive the vibration feedback and 

see the startup screen.

Figure 2.3.2.1: Power On Controller
11

2.4 Propellers

Solo uses two types of self-tightening propellers, indicated by the color of the circle at the center of the propeller. 

2.4.1 Attaching

Attach the propellers with silver tops to the motors with a silver dot on the top of the motor shaft, and attach the 

black-top propellers to the motors with black dots. Make sure to remove the paper labels from the motors before 

attaching the propellers.

Silver-top propellers tighten clockwise; black-top propellers tighten counterclockwise. Check the lock and unlock 

icons on each propeller to see the correct directions for tightening and removing.

Figure 2.4.1.1: Attach Propellers

2.5 Camera

Solo includes a fixed GoPro® The FrameTM mount for your GoPro® HERO 3, 3+ or 4.

2.5.1 Attaching

To attach the camera to the GoPro® The FrameTM fixed mount, insert your GoPro® upside down and connect the 

Solo HDMI cable to the camera.

remove motor labels remove motor labels
12

Figure 2.5.1.1: Attach Camera

2.5.2 Settings

For best results, adjust the camera settings for inverted orientation and medium field of view. (Setting the field of 

view to medium ensures that you won’t see the propellers in the frame.) 

Figure 2.5.2.1: Camera Configuration Process

Make sure that the Wi-Fi on your GoPro® is turned OFF. It can 

interfere with Solo’s communication signals and cause unexpected 

behavior.

GoPro® The FrameTM

Your GoPro®

HERO 3, 3+ or 4 Mount your GoPro®

upside down.

Connect the HDMI 

cable.

Set the GoPro® HERO3 

to inverted orientation:

Enable GoPro® HERO4

auto-orientation:

Set the GoPro® to 

medium field of view:

GoPro®

Settings

Camera 

Orientation

GoPro®

Settings

SETUP ORIENTATION

OFF

:OFF

:UP

:VIDEO

ORIENTATION

OFF

:OFF

:AUTO

:VIDEO

EXIT

EXIT

RESET CAM
13

2.6 Mobile App

“3DR Solo” provides a streaming video link to a mobile device and provides a simple graphic interface for 

interacting with Smart Shots and other advanced Solo features.

2.6.1 Install

Visit 3dr.com/soloapp or download “3DR Solo” from the App Store or Google Play Store. 3DR Solo works with iOS 

8.0 or later and Android 4.3 or later. For Android, you must also install the “3DR Services” app to your device.

2.6.2 Connect to Solo

To connect the app to the 3DR Link Wi-Fi network, access the Wi-Fi settings on the mobile device and select Solo_

Link-####. Enter the temporary password “sololink”. Once connected, return to the app to continue.

Figure 2.6.2.1: Connect to Solo Link

2.6.3 Change SoloLink Password

To connect to Solo Wi-Fi through the app, change your password to secure your SoloLink network. In the app, 

select the Settings menu from the top-left drop-down, and choose Solo to access the options for your vehicle.

Figure 2.6.3.1: App - Settings Menu Access

In the Solo menu, select Wi-Fi Settings. Change the network name to something unique to you, and set a new 

password. The password should be between 8 and 32 characters with no spaces. Select Apply to enable your 

changes.

Settings

Airplane Mode

WI-FI

Bluetooth

Cellular

Solo_Link-####

On

Notifications

Control Center

Do Not Disturb

LTE 7:34 PM

WI-FI Solo_Link-####
14

Figure 2.6.3.2: SoloLink Wi-Fi In-App Network Settings

2.6.4 Update

Before your first flight, perform the required first-flight update for Solo and the controller using the app. The 

controller will prompt you for the update with the preflight update alert. Ensure that both the controller and Solo are 

powered, the controller is charging, and the app is connected to Solo Wi-Fi.

Figure 2.6.4.1: Controller Preflight Update Prompt

To start the update, open the Settings menu, and select Software Update.

Figure 2.6.4.2: Solo App Update Process

While the update is in progress, the controller will show the screen shown the controller updating display. The 

controller will complete a full restart as part of the update process, which can take up to 10 minutes.

Figure 2.6.4.3: Controller Updating Display

When the controller update is complete, the controller will display the controller updated screen. Use the app to 

reconnect to Solo Wi-Fi, and press A on the controller to continue the update.

Controller updating

Update will take about 5 minutes

Please ensure charger is connected

Controller may go dark while updating

preflight update

Required before first flight!

Use 3DR Solo App to update
15

Figure 2.6.4.4: Controller Updated Display

After pressing A, the controller will display waiting for Solo while the update is in progress. 

Figure 2.6.4.5: Controller - Solo Update Display

When the update is complete, Solo’s LEDs will turn green, the controller will return to the standard takeoff screen, 

and the app will show that the software is up to date.

Figure 2.6.4.6: Update Success

2.6.5 View Video

After the update is complete, select Fly Solo to view video in the app. Solo, the controller, and the GoPro® must 

be powered to view video. Verify that you can view video before your first flight. If the video is inverted, see section 

2.5.2.

Figure 2.6.5.1: Viewing Video on the App

Controller updated

Please reconnect to Sololink wifi 

Press to continue

Press when LEDs are green

waiting for Solo
16

3 Safety

The following best practices will help ensure safe, successful flights and help reduce the risk of accident and serious 

injury. Always fly under adult supervision and with your full attention at all times. Do not fly under the influence or 

when your ability to operate Solo safely is impaired. Use your common sense to avoid unsafe situations and always 

operate Solo responsibly.

3.1 Location

Don’t fly Solo indoors. Always fly outside in clear, open areas at a safe distance from yourself, other people, power 

lines, animals, vehicles, trees, and buildings. When flying in areas with potential hazards, maintain 100 feet (30 m) 

from any people, vehicles, or structures. As the operator, you are responsible for navigating Solo to avoid obstacles, 

including during Smart Shots. 

Don’t fly within 5 miles of an airport or within any airspace restricted by your local, state, or national airspace 

authority. As the operator, you are responsible for knowing and understanding the regulations that govern small 

unmanned aircraft like Solo in your jurisdiction.

3.2 Environmental Awareness

Don’t fly Solo in extreme weather conditions such as rain, high winds, snow, or fog. Environmental factors and GPS 

irregularities can cause instability in flight, and this can affect Solo’s performance or cause an in-flight failure. 

Before flying, determine the boundaries of the safe flying area at your location. Be aware of any risks, including 

bodies of water, structures, trees, power lines, etc, and designate a few areas where you can land Solo in case of 

an unsafe situation. Throughout your flight, be prepared to recover Solo manually or use an emergency procedure if 

Solo flies outside the safe flying area. 

3.3 Visual Line of Sight

Always fly Solo within your visual line of sight. Don’t let Solo get so far away from you that you cannot see its 

orientation or so that any physical obstructions block your view of Solo.

3.4 Flight School

If you’re new to flying, review the video tutorials in the Flight School area of the app before your first flight. Flight 

School provides useful tips for learning to operate Solo safely and correctly.

Figure 3.4.5.1: App Flight School

Read and understand these important safety instructions before your 

first flight to help reduce the risk of accident and serious injury.
17

3.5 Propellers

To avoid hazardous contact with Solo’s high-speed propellers, always power off Solo before handling Solo or 

the propellers. When prompted to start motors before takeoff, always ensure that the propellers are clear of any 

obstructions and away from any people, animals, or property before activating. Do not touch moving propellers or 

approach Solo while the propellers are spinning.

After landing or returning home, Solo will automatically detect the landing and stop the motors. Do not approach 

Solo until the propellers stop spinning, and power off Solo before picking it up.

3.6 Home Position

Solo’s home position is the latitude and longitude coordinates of the launch point used by the autopilot as the 

end point of a return-home command. The autopilot saves the home position at the location where the motors are 

started only after achieving GPS lock. Always take off from an open location with a clear path for Solo to return 

home safely. For home position safety in advanced mode, see section 4.4

3.7 Altitude Limit

Always fly at appropriate altitudes for your flying location and local regulations. Solo cannot avoid obstacles on its 

own, so always select altitudes that avoid any obstacles, such as trees, buildings, and power lines.

Solo includes a safety fence enabled by default at 328 ft. (100 m). This altitude reflects current FAA regulations to 

avoid potential conflicts with manned aircraft and represents a safe line-of-sight altitude. If Solo reaches the altitude 

limit, Solo will stop ascending and limit throttle input to stay below the altitude limit. The controller will display the 

following alert in the event that Solo reaches the maximum altitude.

Figure 3.7.5.1: Controller Maximum Altitude Warning

To adjust the altitude limit, connect to the app (Section 2.6) and select Altitude Limit from the Solo Settings menu. If 

you choose to select No limit, ensure that you always operate Solo within your visual line of sight and in compliance 

with local regulations.

Figure 3.7.5.2: App - Altitude Limit

Maximum altitude

Solo has reached preset 

maximum altitude

Spinning propellers can cause serious injury! Never touch moving 

propellers or place any objects in the way of the propeller arcs while 

Solo is powered.
18

3.8 Emergency Procedures

If you experience a problem in flight, use one of the following emergency procedures to stop Solo, end your flight, or 

shut off the motors.

3.8.1 Pause

The controller’s Pause button allows you to stop Solo mid-air. Solo will hover at the paused location until given 

another command. Use the Pause button to stop Solo from hitting an obstacle or to re-orient Solo for navigation. 

Press Pause during Return Home or Land to pause Solo and stop the landing. Pause is available only with GPS 

lock.

3.8.2 Regain Manual Control 

Keep the controller easily accessible at all times during flight, including Smart Shots, and be prepared to regain 

manual control at any time. To return to standard flight during Smart Shots, Return Home, or Land, press the Fly 

button.

3.8.3 Return Home

If Solo acquired GPS lock prior to takeoff, press the controller’s Home button to return Solo to the launch point 

and land. Use return home after receiving a low battery notification or to end your flight easily. Solo will not avoid 

obstacles while returning home; always verify that the return path is clear before activating Return Home.

3.8.4 Land

To land Solo at its current position, press and hold the Fly button. If Solo does not have GPS lock, there will be no 

automatic positioning as Solo descends, and drifting may occur depending on environmental conditions.

3.8.5 Motor Shutoff

In the event that Solo’s motors do not stop after landing or for an emergency in-flight kill switch, Solo includes 

an emergency motor shutoff procedure. To shut off the motors at any time, either in flight or on the ground, hold 

the A, B, and Pause buttons at the same time. An initial screen will appear on the controller to confirm the shutoff 

command; continue to hold A, B, and Pause buttons to activate motor shutoff.

Figure 3.8.5.1: Motor Shutoff Displays

Spot lock

Hold + 

 to shut off motors

FLY 12

Spot lock

Hold + 

 to shut off motors

FLY 12
19

3.9 Flight Battery

Use caution when handling the Solo Smart Battery; lithium polymer batteries can cause a fire if handled incorrectly. 

Never alter, puncture, throw, bend, or impact the battery. Keep the battery away from liquids, fire, microwaves, and 

other hazardous or combustible materials. Don’t expose the battery to extreme temperatures. The battery functions 

optimally when used in -4° F to 140° F. If the battery is hot to the touch, wait for it to cool before using or charging. 

Inspect the battery before and after each flight. It is possible for the battery to be damaged in shipping, use or 

charging. If you notice any abnormal features such as damage to the exterior shell, swelling, deformation of the 

battery, abnormal smell, leakage, or other unexpected behavior, do not use the battery! These can be signs of 

serious damage that can cause the battery to catch fire. In this case, do not use the battery again. Disconnect the 

battery, place the battery in a safe area outside of any buildings or vehicles and away from flammable materials to 

prevent a hazard in case of fire or explosion. Do not dispose of the battery in the trash; dispose of the battery at 

local battery recycling center as soon as possible. In the US and Canada, visit call2recycle.org to find a location.

For long term storage, store the battery in an 64° F to 82° F environment, between 45-85% relative humidity 

and with 50% charge. Always make sure to store the battery in a place where it won’t be exposed to extreme 

temperatures or direct sunlight. 

3.10 Controller

The rechargeable lithium ion (Li-ion) controller battery is housed inside the controller, accessible by the battery door 

at the back of the controller. The controller battery is pre-attached to the controller, and shouldn’t be disconnected 

unless:

• You plan to store the controller for over three months without using it. In this case, disconnect the battery 

from the controller and leave the battery inside the controller to store it.

• You need to switch the controller battery for a new or upgraded controller battery. Upgraded controller 

batteries with double the capacity are available from store.3dr.com. In the case where you need to store the 

extra controller battery, store it in location where it will not come into contact with metal objects or other 

batteries. If the battery’s connector comes into contact with a metal object, it can short circuit the battery and 

cause a fire.

Keep the controller away from liquids, fire, microwaves, and other hazardous or combustible materials. Don’t 

expose the controller to extreme temperatures. The controller functions optimally when used in -4° F to 140° F. If the 

controller is hot to the touch, wait for it to cool before using or charging. 

Perform periodic visual inspections of the controller battery to check for any damage, and handle the controller 

battery using the same safety precautions as the Solo Smart Battery.
20

4 Operating Procedures

This section covers complete procedures for flying Solo, including preflight checks, manual control, and automatic 

recall.

4.1 Preflight Checklist

Before flying, check the following operating conditions.

4.1.1 Location

» Your current location and environmental conditions are suitable for flight. (Section 3.1)

» Solo is on a level surface at a clear launch point a sufficient distance from yourself and others. (Section 3.1)

4.1.2 Components

» The propellers are correctly attached. (Section 2.4)

» The propellers can spin smoothly and without obstruction when turned.

» No components on Solo appear loose or damaged.

4.1.3 Power

» The controller is powered on with at least 50% charge. (Section 2.3)

» Solo is powered on with a fully charged battery. (Section 2.2)

4.1.4 Video (Optional)

» The Solo app is connected to Solo and streaming video. (Section 2.6)

» The GoPro® is recording.

4.2 Takeoff

The takeoff process has two steps: start motors then take off. Always place Solo at a clear launch point for takeoff, 

at least 20 feet away from you, other people, and structures.

4.2.1 Activating Motors

When Solo is ready to fly, the controller will prompt you to hold the Fly button to start Solo’s motors. Hold Fly until 

the propellers spin. Solo is now active, ready for takeoff, and needs to be treated with appropriate caution to avoid 

safety hazards. Press the Pause button anytime Solo is on the ground with the motors spinning to stop the motors.

Figure 4.2.1.1: Controller Start Motors Prompt

Cable Cam Orbit

FLY 12

Hold FLY to start motors
21

4.2.2 Initiating Takeoff

Hold Fly again to initiate takeoff. Solo will rise to 6 feet (2 m) and hover until receiving further control inputs.

Figure 4.2.2.1: Controller - Takeoff Prompts

4.3 Landing

Hold the Fly button to land Solo at its current location.

Figure 4.3.2.1: Controller - User-Initiated Landing

After landing, the propellers will stop spinning automatically; wait until the propellers stop spinning before 

approaching Solo.

When commanded to land, Solo will land at the current location, 

wherever it is. Always make sure there is a clear path to a safe landing 

point directly below Solo before landing. 

Never approach Solo while the propellers are spinning. After an 

auto-landing or return-to-home, always wait until the propellers stop 

before approaching or touching Solo. 

Cable Cam Orbit

FLY 12

Hold FLY to take off

Cable Cam Orbit

FLY 12

Hold FLY to take off

Spot lock Rewind

FLY 12

Hold FLY to land

Cable Cam Orbit

5FT

0FT

HOME

30%

FLIGHT BATTERY

ALTITUDE

LAND 12

LANDING COMPLETE

Be aware of Solo’s orientation before takeoff, so you can safely 

navigate Solo up and away from you once it’s in the air. If Solo is 

facing towards you at takeoff, move the right stick back; if Solo is 

facing away from you, move the right stick forward.

Spinning propellers can cause serious injury! Always make sure 

Solo is clear of any obstructions and all people and animals are away 

from Solo before spinning the props.
22

4.4 Return Home

The Return Home button ends your flight automatically by first returning Solo to the home position (launch point) 

then landing. 

When commanded to return to home, Solo:

1 Achieves a minimum altitude of 98 feet (30 m) or maintains current altitude if above 98 feet.

2 Moves to launch point and loiters for 5 seconds.

3 Lands at the home point.

Figure 4.4.2.1: Return Home Behavior

4.5 In-Flight Data

Use the controller’s main data display to monitor Solo’s status in flight.

Figure 4.5.2.1: Controller In-Flight Data Display

1 Flight battery percentage remaining 

2 GPS signal strength and number of active satellites

3 Active mode or Smart Shot

4 Controller battery level 

5 Solo Wi-Fi signal strength

6 Distance from the home position (launch point)

7 Current altitude

8 Currently assigned functions of controller A and B buttons

2

3 4

5

6

7

8

1

home

98 ft. hover 5 seconds
23

4.6 Joystick Control

The controller’s two joysticks allow you to navigate Solo in flight. The left stick controls Solo’s altitude and rotation.

Figure 4.6.2.1: Controller Left Joystick

Move the left stick vertically to control Solo’s altitude and acceleration.

Figure 4.6.2.2: Throttle Joystick Behaviors

UP

DOWN

ROTATE

LEFT

ROTATE 

RIGHT

Move the left stick back from 

center to decrease altitude. 

Set the left stick to center to 

maintain the current altitude.

Set the left stick fully back to 

land once Solo is a few inches 

above the ground.

To take off and to gain altitude, 

move the left stick slightly past 

the center position.
24

Move the left stick horizontally to rotate Solo and control orientation.

Figure 4.6.2.3: Yaw Joystick Behavior

Use the right stick to fly Solo forward, back, left, and right. These movements are relative to Solo’s current 

orientation, so always maintain awareness of Solo’s forward-facing direction before using right-stick controls.

Figure 4.6.2.4: Controller Right Joystick Controls

Move the stick to the left to 

rotate counterclockwise.

Move the stick to the right to 

rotate clockwise.

Release the stick to stop 

rotating the maintain the 

current orientation

LEFT RIGHT

FORWARD

BACK
25

Move the right stick vertically to control pitch.

Figure 4.6.2.5: Pitch Joystick Controls

Move the right stick horizontally to control roll.

Figure 4.6.2.6: Roll Joystick Controls

Move the right stick 

forward to fly forward.

Move the right stick 

back to fly backward.

Move the right stick 

left to fly left.

Move the right stick right 

to fly right.

If you’re new to drones, take some time to learn the basics before your 

first flight. Visit 3dr.com/solo/info or check out Flight School in the Solo 

app to learn about flight controls and best practices.
26

4.7 App Interface Overview

The Solo app provides a simplified interface for viewing Solo’s video feed and managing Smart Shots. 

Figure 4.7.2.1: App - Main Interface

 1 Live video feed

 2 Main menu

 3 Horizontal distance from home

 4 Altitude

 5 Shot List

 6 Flight battery percentage remaining

 7 Controller signal strength

 8 Hide telemetry bar

 9 Map view

10 Start/stop recording to device

11 Alerts and instructions

4.7.1 Map View

To access the small map view, swipe left from the right edge of the app. Swipe left again to full-screen the map, and 

tap the map to hide it. The map view is available only with GPS.

4.7.2 Shot List

To access the Shot List, select the active mode or shot from the title bar. Choose from Selfie, Cable Cam, Orbit, and 

Follow to start a shot, or select Fly for standard flight.

Figure 4.7.2.1: App - Shot List

23 4 5 6 7 8

1

10 9

11
27

5 Smart Shots

Solo’s Smart Shots automate video capturing to make it easy to replicate traditional filming techniques. Smart 

Shots can be useful for designing artistic video or for automating flight to restrict Solo to within a designated area. 

Cable Cam and Orbit are automatically assigned to the controller’s A and B buttons. Use the app to access Selfie or 

Follow. You cannot use Smart Shots without the Solo app.

When using Smart Shots without a Solo Gimbal, Solo cannot ensure that the subject is in the frame at all times. 

When attempting Smart Shots without a Solo Gimbal, adjust the camera mount so the camera is fixed at an 

appropriate angle for the following distance to improve the chances of keeping the subject in the frame.

5.1 Selfie

In Selfie, Solo performs an automated maneuver to capture a subject in a cinematic establishing shot. Before 

starting a selfie, always ensure that there is a clear path 200 feet (61 m) behind and above Solo. Once Selfie is 

activated, Solo will fly up and away from the subject to a point 164 feet (50 m) from the subject at 82 feet (25 m). 

Figure 5.1.2.1: Selfie Path and Settings

1 Distance out (default 164 ft.)

2 Altitude up (default 82 ft.)

3 Flight path

5.1.1 Selfie Setup

To start Selfie, fly Solo to a starting point, facing the subject from approximately 10 feet away, and select Selfie from 

the Shot List. The app will prompt you to press the right arrow to start the selfie.

Figure 5.1.1.1: App - Selfie Activation

2

1

3

Always ensure that there is a clear path 200 feet (30 m) behind and 

above Solo before starting Selfie. Press Pause at any time during Selfie 

to stop Solo. Press Fly at any time to switch to manual control.
28

5.1.2 Selfie Operation

Use the controller’s right stick to move Solo forward and back along the Selfie path, or tap the forward and back 

arrows in the app. The left stick is inactive in Selfie. Press Pause at any time to stop Solo along the flight path, and 

press Fly to exit to manual control. The default cruise speed when using the app to control Solo in Selfie is set to 9 

mph (4 m/s).

Figure 5.1.2.1: Selfie Control

5.1.3 Settings

Use the Solo app the edit Selfie settings. To access the settings from the in-flight Selfie interface, select the option 

icon with the three dots in the bottom-right. Use the sliders to adjust distance out, altitude up, and cruise speed. 

Select Selfie How-To for instructions and tips.

Figure 5.1.3.1: App - Selfie Settings

5.2 Cable Cam

Cable Cam creates a smooth shot by flying Solo along an invisible cable between any two preset points. Cable Cam 

can only be started in flight.

5.2.1 Starting Cable Cam

Press A on the controller, or select Cable Cam from the Shot List on the app. Both devices will prompt you to fly 

Solo to your first point and press A then fly to your second point and press B. Try adding a difference in altitude or 

orientation between the two points for an impressive cinematic effect.

Figure 5.2.1.1: App - Cable Cam Setup

Move along 

flight path
29

5.2.2 Cable Cam Operation

Use the controller’s right stick to fly along the cable. Move the right stick to the left to fly towards point A and to the 

right to fly towards point B. Release the right stick to pause along the cable. Use the left stick to temporarily override 

the camera and look left and right. Use the controller to set Solo’s speed manually, or use the app to use a constant, 

preset speed. To control Cable Cam through the app, tap the right arrow to move towards point A and tap the left 

arrow to move towards point B. Cable Cam’s default cruise speed is set to 9 mph (4 m/s). Press Pause to stop Solo, 

and press Fly to exit to standard flight.

Figure 5.2.2.1: Cable Cam Controls

5.2.3 Cable Cam Settings

To adjust Cable Cam’s options, select the settings menu in the bottom-right corner. Automatic view lock prevents 

left-stick camera control during Cable Cam. Choose Fly Counterclockwise and Fly Clockwise to customize the 

direction Solo rotates between your A and B points. Select Cable Cam How-To for instructions and tips.

Figure 5.2.3.1: App - Cable Cam Settings

5.3 Orbit

Use Orbit to fly Solo along a preset circle while fixing the camera on a central target. Orbit requires the app to set 

the subject and can only be started from the air.

5.3.1 Starting Orbit

Select Orbit from the Shot List. The app will display the currently set radius of the orbit and show the location of the 

subject on the map. Fly Solo to correct the subject’s position on the map if necessary then press A on the controller 

to lock onto the subject. The app will display a Subject Locked confirmation once the orbit subject is set. To adjust 

the position of the subject during Orbit, move the center point on the map.

Camera Cable

Always ensure that there is a clear path between points A and B before 

starting Cable Cam. Press Pause to stop Solo at any time during Cable 

Cam. Press Fly to return to standard flight.
30

Figure 5.3.1.1: App - Orbit Setup

5.3.2 Orbit Operation

Move the right stick left and right to fly Solo along the orbiting flight path. Move the right stick up to reduce the 

radius of the orbit and move Solo closer to the subject; move the right stick down to increase the radius and move 

Solo away from the subject. Be aware of any elevation changes in Orbit’s path. 

Move the left stick left and right to temporarily override the camera’s lock on the subject and look left and right. 

Move the left stick up and down to adjust Solo’s altitude. Use the paddle on the top of the controller to raise and 

lower the altitude of the target. Press Pause to stop Solo at any time, or press Fly to exit to standard flight.

Figure 5.3.2.1: Orbit Controls

5.3.3 Orbit Settings

Select the Orbit Settings Menu to adjust Solo’s default cruise speed in Orbit. The default cruise speed for Orbit is 

2.2 mph (1 m/s).

Figure 5.3.3.1: App - Orbit Settings

Orbit

Altitude Adjust radius

Camera

Subject altitude

Solo will orbit at a constant altitude relative to its launch point, 

not taking into account changes in ground level. Be aware of any 

elevations changes at your location that would affect Solo. Always 

ensure there is a clear path for Solo before starting Orbit.
31

5.4 Follow

Follow creates a virtual tether between Solo and your mobile device, allowing Solo to track you as you move. If the 

Follow subject is engaged in an activity that prevents them from using the controller, you are required to use an 

additional safety pilot during Follow. The subject will carry the mobile device and be followed by Solo, and the safety 

pilot will hold the controller and be ready to regain manual control at any time. 

5.4.1 Follow Setup

To start Follow, take off normally and select Follow from the Shot List in the app. Tap the instructional bar to begin 

following.

Figure 5.4.1.1: App - Follow Setup

5.4.2 Follow Operation

Once activated, Solo will automatically follow the mobile device wherever the subject carries it. In the app, press the 

left and right arrows in the app interface to orbit Solo around them. On the controller, move the right stick forward 

and back to adjust the following distance, and move the right stick left and right to orbit around the subject. Use the 

left stick to adjust Solo’s altitude during Follow and to override the camera tracking and temporarily pan the camera 

left and right. At any time during Follow, press Pause to stop Solo and the camera will continue to track the subject. 

Press Fly to return to standard flight.

Figure 5.4.2.1: Follow Controls

5.4.3 Follow Settings

Select the settings menu to adjust the default cruise speed during Follow. Follow’s default cruise speed is set to 2.2 

mph (1 m/s).

Figure 5.4.3.1: App - Follow Settings

Orbit

Adjust following 

Altitude distance

Camera

Always ensure that there is a clear path for Solo during Follow. It 

will not avoid obstacles that come into the flight path as a result of 

following the subject. 
32

6 Alerts

The following alerts will appear on the controller in the event of a preflight or in flight error. Always monitor the 

controller for alerts and perform the recommended actions.

6.1 Preflight Errors

Before starting the motors, Solo runs a series of automatic checks to ensure that the system is ready for flight. 

6.1.1 Calibration

The following errors indicate that a preflight check is in progress: altitude calibrating, calibrating solo, and calibrating 

compass.

Figure 6.1.1.1: Controller - Calibration in Progress Alerts

If Solo is not placed on a level surface, you will receive the following alert to move Solo to a level surface for takeoff.

Figure 6.1.1.2: Controller - Uneven Surface Alert 

If Solo requires manual calibration, the following alert messages show the displays for compass and level 

calibrations. Refer to Section 7.2 for compass and level calibration instructions.

Figure 6.1.1.3: Controller - Re-Calibration Required Alerts

In the case of a calibration or sensor error during startup, restart Solo to clear the following alerts.

Altitude calibrating

Please wait

Calibrating Solo Please wait

Calibrating compass Please wait

Compass error

Please calibrate compass using

the 3DR Solo app

Level error Please calibrate level 

using the 3DR Solo app

Uneven surface Move Solo to a level surface
33

Figure 6.1.1.4: Controller - Calibration Error Alert

6.1.2 Service Alerts

The following alerts indicate a system error that requires service. Use the app to submit a trouble ticket with 3DR 

Support or contact an authorized Solo Service Center to service Solo and clear the alert. A control stick error can 

occur either in flight or before takeoff. If the control stick error is received in flight, Solo will return home and land. 

Figure 6.1.2.1: Controller - Service Alerts

6.2 In-Flight Errors

During flight, the controller monitors Solo’s GPS signal, controller signal, flight battery level, and controller battery 

level.

6.2.1 Altitude Limit

If Solo reaches the altitude limit during flight, it will maintain and not exceed that altitude and the controller will 

display the following alert. Refer to Section 3.7 for instructions on setting the altitude limit and choosing safe 

altitudes for flight.

Figure 6.2.1.1: Controller - Altitude Limit Alert

6.2.2 App Connection

The controller will display the following banner-style alerts in the event that the Solo app is connected to or 

disconnected from Solo. We recommend having an active connection to the Solo app at all times during flight. Refer 

to Section 2.6 for connecting to Solo Wi-Fi with the app. Solo will not return home if the connection to the app in 

lost during flight, see Section 6.2.4 for more information on losing GPS.

Service required

Use 3DR Solo app to log a trouble 

ticket with customer support

Control stick error

Contact 3DR customer support

Control stick error Solo will return home

Maximum altitude Preset max altitude reached

Calibration error Please restart Solo

Sensor error

Please try and restart Solo
34

Figure 6.2.2.1: Controller - App Connection Alerts

6.2.3 Controller Signal Alerts

Flying behind solid objects, like buildings and trees, blocks communication signals between Solo and the controller. 

Always maintain visual contact with Solo to ensure that the signal is unobstructed. Cell phone towers and nearby 

Wi-Fi signals can cause interference with the communication system and decrease its range. Avoid flying in 

populated areas to avoid sources of interference.

If the controller loses power or becomes unpaired from Solo during flight, the controller will display the following 

alert and Solo will Return to Home. See Section 7.3 for pairing instructions.

Figure 6.2.3.1: Controller - Controller Disconnected Alert

If the signal between Solo and the controller is lost during flight, the controller will display the controller signal lost 

alert and Solo will return home. If signal is recovered while returning home, the controller will display the signal 

recovered alert and provide the option to regain manual control by pressing the Fly button.

Figure 6.2.3.2: Controller - Controller Signal Alerts

6.2.4 GPS Signal Alerts

If GPS is lost during flight, Solo will switch into Fly:Manual. In Fly:Manual, Solo uses the same joystick controls as 

in standard flight (displayed as “Fly”), but it does not include any GPS positioning. Therefore, in Fly:Manual, Solo will 

not hold its position when the right stick is released, and the operator must maintain close control over roll, pitch, 

and yaw. Without GPS, Pause, Return Home, and Smart Shots are not available. During Land, Solo will not be able 

to maintain position due to the lack of GPS positioning and will drift according to wind and other environmental 

conditions. If another alert occurs while Solo is in Fly:Manual, Solo will not be able to Return Home and will instead 

initiate a non-positioned landing at the current location. We recommend landing Solo in the event of a loss of GPS 

and waiting to acquire GPS lock before taking off again.

When GPS is recovered, Solo will switch from Fly:Manual to standard flight (Fly), and GPS positioning will activate. 

The following displays show (from left to right) the GPS lost alert, Solo in Fly:Manual, and GPS recovered alert. 

Always choose a location with a clear view of the sky to improve GPS signal strength.

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY 12

3DR Solo app connected

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY 12

3DR Solo app disconnected

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

Disconnected 12

Disconnected from Solo

Controller signal lost Solo will return home

Signal recovered
35

Figure 6.2.4.1: Controller - GPS Signal Alerts

6.2.5 Flight Battery Alerts

The controller monitors the Solo battery during flight and provides alerts when the battery reaches critical levels. At 

25% and 10% power remaining, the controller will provide a land-soon alert recommending that you end your flight 

to prevent an automatic landing.

Figure 6.2.5.1: Controller - Low Battery Alerts

If the battery reaches 5%, Solo will initiate an automatic landing at the current location to prevent a crash. If the 

battery level reaches 0% while in use, irreversible will occur and the battery should be discarded.

Figure 6.2.5.2: Controller - Critical Battery Alert

6.2.6 Controller Battery Alerts

When the controller battery reaches 10%, the controller will display an alert to notify you to charge the controller at 

your next opportunity. At 5%, the controller will prompt the operator to end their flight and charge the controller. If 

the controller battery reaches a critical level in flight, Solo will Return to Home. The following displays show (left to 

right) the 10%, 5%, and 0% alerts

Figure 6.2.6.1: Controller - Controller Battery Alerts

Auto-landing engaged

Flight battery at 5%

Cable Cam Orbit

324FT

84FT

HOME

5%

FLIGHT BATTERY

ALTITUDE

Stabilize 12

Flight battery at 5%

Auto-landing engaged

Cable Cam Orbit

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY:Manual 6

GPS ready

Switching to FLY

GPS lost

Switching to manual control

charge soon Low controller battery

Dismiss

land soon

Controller Battery at 5%

Returning home

Controller battery at 0%

Cable Cam Orbit

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

Stabilize 12

Flight battery at 25% 

Return home soon

Land soon

Flight battery at 10%

Cable Cam Orbit

324FT

84FT

HOME

10%

FLIGHT BATTERY

ALTITUDE

Stabilize 12 FLY 12 FLY 12

FLY 12
36

7 Maintenance

This section covers basic operational maintenance procedures for Solo. For repairs not covered in this manual, 

contact 3DR Support or an authorized Solo Service Center.

Solo’s exterior components are designed to absorb impact from hard landings and protect the core electronics. 

If damage is sustained to Solo’s legs or motors, replace them with official 3DR parts from store.3dr.com or an 

authorized retailer. 3DR offers an extended controller battery upgrade with double the capacity so you can fly more 

between charges. Before opening the battery bay or performing any maintenance on Solo, always ensure that Solo 

is powered off with the battery removed. 

7.1 Controller Battery Replacement

To replace the controller battery, open the battery door on the back of the controller. Remove the foam block and 

disconnect the battery from the port in the side of the battery compartment. To install a battery, connect the battery 

to the controller, and, for standard-size controller batteries, use the foam block to pad the empty space in the 

compartment. See Section 3.10 for information on safely storing spare controller batteries.

Figure 7.1.6.1: Controller Battery Installation

7.2 Calibrations

Use the Solo app to perform compass and level calibrations when prompted by the controller. Remove Solo’s 

propellers before performing calibrations. 

7.2.1 Compass Calibration

To calibrate Solo’s compass, connect the app to Solo Wi-Fi and select Compass Calibration from the Solo menu. 

Ensure that Solo and the controller are powered on with the propellers removed. Solo requires an interference-free 

environment for compass calibration, so ensure that you are away from metal buildings, reinforced concrete, or 

other metal structures before starting calibration.

Figure 7.2.1.1: App - Compass Calibration Setup

The app will prompt you to rotate Solo end-over-end multiple times until the bar at the top of the screen is 

completely green. If the calibration fails, move to a different location and try again.

and, for standard size controller batteries, use the foam

ee Section 3.10 for information on safely storing spare co
37

Figure 7.2.1.2: App - Compass Calibration Procedure

7.2.2 Level Calibration

A level calibration zeros Solo’s accelerometers to recognize static states. To perform a level calibration, remove the 

propellers from Solo and connect the app to Solo Wi-Fi. Select Level Calibration from the Solo menu, and follow 

the prompts to place Solo perfectly still on each side in turn. In each step, wait a few seconds after moving Solo to 

press Next.

Figure 7.2.2.1: App - Level Calibration

7.3 Pairing

To pair a controller with Solo, first power both the controller and Solo. Power off any other Solos or controllers in the 

vicinity. Once powered, use a paper clip to press the pair button on the underside of Solo to activate pairing mode. 

Figure 7.3.2.1: Solo Pair Button

The controller will automatically detect Solo and prompt you to pair. Hold the A and B buttons on the controller to 

start pairing. To cancel pairing, press B.

Figure 7.3.2.2: Controller Pairing Procedure

detected new Solo

Hold to pair + to cancel
38

7.4 Legs

Solo uses three unique types of legs: 2 legs with an antenna module (#1 and #2), a leg without any electronic 

components (leg #3), and a leg with a compass module (leg #4). Replacements for all types of leg can be purchased 

from store.3dr.com or an authorized retailer.

Figure 7.4.2.1: Legs Contents

7.4.1 Leg #3

To replace a standard leg, use a #2 Phillips screwdriver to remove the two screws, detach the old leg, and attach 

the new leg using the provided screws. 

Figure 7.4.1.1: Standard Leg Replacement Process

7.4.2 Legs #1 and #2 with Antennas

To replace a leg with an antenna module where the antenna is physically undamaged, you’ll need to remove the 

antenna from the old leg before replacing it.

To detach the antenna, remove the plastic sheet from the leg (1) and detach the antenna from the Velcro by carefully 

pulling the cable (2). Follow the standard leg replacement procedure to detach the old leg (3).

1

Compass

Antenna

Antenna

Standard
39

Figure 7.4.2.1: Detaching the Antenna from the Leg

Attach the new leg (1) by threading the antenna cable through the notch in the top of the leg (2).

Figure 7.4.2.2: Attaching a New Leg with an Existing Antenna

To secure the antenna to the new leg, use the provided Velcro to attach only the yellow-backed Velcro strip to 

the Velcro on the antenna (1). Then remove the backing and attach the Velcro and antenna to the inside of the 

leg, placing the tip of the antenna 5 mm from the edge of the rubber foot (2) as shown below. Fold the ends of a 

provided plastic sheet at right angles (3), remove the adhesive backing, and stick the plastic sheet to the leg so it 

secures the antenna in place (4).

Figure 7.4.2.3: Attaching an Existing Antenna to a New leg

4

3 2

1

2

3

2

1

5 mm between 

antenna and foot
40

7.4.3 Leg #4 with Compass

Solo’s right-rear leg (#4) contains the compass module. Detach the leg from the arm as you would a standard leg, 

but the leg will not be removable until you disconnect the compass from Solo. To access the compass connector, 

you’ll need to remove the battery tray from Solo. See Section 7.5 for battery tray removal instructions. With the 

battery tray removed, locate the compass connector in the corner of the board closest to the leg being replaced. 

Disconnect the compass connector from the board by holding down the tab on the far side of the connector and 

lifting up the connector. Since the space between the arm and the connector is limited, it may help to use the 

screwdriver to press the tab.

Figure 7.4.3.1: Compass Connector on Mainboard

With the compass disconnected, remove the old leg and cable from Solo. Place the new leg into position and thread 

the new compass cable through the arm where it can connect to the board. Connect the compass connector in the 

same place as the old compass.

Figure 7.4.3.2: Insert New Leg with Compass

Secure the new leg in place and replace the battery tray.
41

7.5 Battery Tray

The battery tray holds the battery and GPS in place, and allows you to access the main electronics bay. This section 

covers how to remove to tray to access the interior of Solo.

7.5.1 GPS Cover

The GPS cover is the flat, black end cap in front of the battery tray. To remove it, use a small, flat prying tool to 

remove the GPS cover from the front of the battery bay by loosening the four clips along the back edge of the cover.

Figure 7.5.1.1: GPS Cover Removal

7.5.2 Battery Tray Removal

To detach the battery tray and access Solo’s main electronics bay, use a small Philips screwdriver to remove the 7 

screws securing the battery tray to Solo. 

Figure 7.5.2.1: Battery Tray Removal

The battery tray will still be connected to Solo via the GPS cable, so carefully lift out the tray just enough to access 

the board beneath. 

Figure 7.5.2.2: Battery Tray Detachment

GPS connector
42

7.6 Motors

Replacement motors are available as clockwise and counterclockwise Motor Pods. Use a counterclockwise Motor 

Pod to replace motors #1 and #2, and use a clockwise Motor Pod to replace motors #3 and #4.

First, use a small, flat prying tool to remove the LED cover form the underside of the arm.

Figure 7.6.2.1: LED Cover Removal

Use a #2 Phillips screwdriver to remove the four screws securing the pod to the arm.

Figure 7.6.2.2: Motor Pod Removal

Disconnect the wide beige connector, the red wire and the black wire to remove the old motor pod. To remove the 

wide beige connector, carefully lift the edges of the connector away from the pod until they pop out, then remove 

the connector. Don’t pull on the wires! The connector can break easily if force is used to remove it.
43

Figure 7.6.2.3: Motor Pod Disconnection

Connect the 3 cables from the arm to the new motor pod. Tuck the cables inside the arm and set the new pod into 

place. 

Figure 7.6.2.4: Motor Pod Connection

Turn over Solo and replace the 4 provided screws to secure the new motor pod into place. Finally, snap the LED 

cover back into place.

Figure 7.6.2.5: Motor Pod and LED Cover Attachment

1

2
44

7.7 Inspection and Maintenance Schedule

In order to maintain optimal performance, Solo requires regular inspection and maintenance. See Figure 7.7.1.1 for a 

general inspection and maintenance schedule.

Solo Inspection and Maintenance Schedule

Internval Service Befrore Every Flight As Needed 150 Hours

Popellers

Inspect for Damage X

Electronic Speed Controllers X

Motors

Inspect for Wear X

Propellers

Replace X

Motor Pods

Replace X

Figure 7.7.1.1 Solo Maintenance Schedule
45

8 Appendix

8.1 Specifications

Solo is a quad-rotor aerial vehicle powered by the 3DR Pixhawk 2 autopilot system and APM:Copter flight control 

software. Solo communicates with the controller and Solo app over the 3DR Link secure Wi-Fi connection.

Autopilot: 3DR Pixhawk 2

Flight code: APM:Copter

Control: 3DR Solo Controller

Wireless communication: 3DR Link 1.0

Frequency: 2.4 GHz

Height: 10 in. (25 cm)

Motor-to-motor dimension: 18 in. (26 cm)

Propulsion: 880 KV motors, two clockwise rotating motors and 

 two counterclockwise rotating motors

Propeller: 10 in. x 4.5 in. (25 cm x 11.4 cm)

Weight with battery: 3.3 lbs. (1.5 kg)

Controller battery life: 3 hours

Extened controller battery life: 6 hours

Controller battery: Li-ion 2600 mAh 7.2 Vdc (5200 mAh for extended battery)

Power: Electric (rechargeable lithium polymer battery)

Battery: Lithium polymer, 5200 mAh, 14.8 Vdc

Battery weight: 1 lb. (.5 kg)

Estimated flight time: 25 minutes*

Maximum altitude: 328 ft. (100 m)

Range: .5 miles** (.8 km)

Payload capacity: 1.1 lbs. (500 g)

Cruise speed: 5.7 mph (2.5 m/s)

Maximum speed: 55 mph (25.5 m/s)

Maximum climb rate: 11 mph (5.0 m/s)

Maximum descent rate: 5.5 mph (2.5 m/s)

Headwind limitation: 25 mph (11 m/s)

Crosswind limitation: 25 mph (11 m/s)

Camera: Streaming video compatible with GoPro® HERO 3, 3+ or 4

 Full compatibility with GoPro® HERO 3+ or 4

Solo app compatibility: iOS 8.0 or later / Android 4.3 or later

Operating temperature: 32° F - 113° F (0° C - 45° C)

Operating relative humidity: 0-85% RH

*Flight time varies with payload, wind conditions, elevation, temperature, humidity, flying style, 

and pilot skill. Listed flight time applies to elevations less than 2,000 ft above sea level.

**Range varies with location, antenna orientation, background noise and multi-path.
46

8.2 Warranty

3D Robotics warrants to the original retail purchaser of Solo (the “Product”) that at the time of purchase that this 

product is free from material defect in materials and workmanship. Should this Product fail during normal consumer 

usage and conditions due to defective material or workmanship within one year from the date of purchase, or such 

longer period as is required by applicable law (“Warranty Period”), such defect(s) will be repaired or replaced at 3D 

Robotics’ option, without charge for parts or labor directly related to the defect(s). The complete terms of the limited 

warranty applicable to Solo can be found at 3dr.com/terms. 

This Warranty extends only to consumers who purchase the product from a 3D Robotics authorized reseller 

and is not transferable or assignable. This Warranty does not apply to: (1) Product subjected to abnormal use or 

conditions, accident (including without limitation, collision, crash or fire), alteration, or improper repair; (2) damage 

from exposure to moisture or extreme environmental conditions; (3) damage from use with any accessory, software 

or other product not expressly authorized by 3D Robotics; (4) damage from external causes such as dirt, sand, 

battery leakage, blown fuse, or improper usage of any electrical source; (5) commercial use; or (6) use in violation of 

law or ordinances in effect in the jurisdiction in which the Product is used.

3D Robotics assumes no liability for any accident, injury, death, loss, or other claim related to or resulting from 

the use of this product. 3D Robotics makes no other warranties for Solo, and makes no warranties whatsoever 

for service, software, maintenance or support for non-3D Robotics branded products. Such products, service, 

software, maintenance or support is provided by 3D Robotics “As Is” and any third-party warranties, products, 

software, services, maintenance or support are provided by the original manufacturer or supplier, not by 3D 

Robotics. 

Software is subject to the separate software license agreement accompanying or made available to you in 

connection with the software. A portion of the software contains or consists of open-source software, which you 

may use under the terms and conditions of the specific license under which the open-source software is distributed. 

You agree that you will be bound by any and all such license agreements, and that your usage of this product 

indicates your acceptance of those agreements. Title to software remains with the applicable licensor(s). In no event 

will 3D Robotics be liable to you for damages, including any general, special, incidental or consequential damages 

arising out of the use or inability to use the software.

THE EXTENT OF 3D ROBOTICS’ LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR 

REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT, SHALL ITS LIABILITY EXCEED THE PURCHASE PRICE 

PAID BY PURCHASER FOR THE PRODUCT.

8.3 Regulatory Compliance

8.3.1 U.S. - FCC (Federal Communication Commission)

3DR Solo FCC: 2ADYD-S111A

3DR Solo Controller FCC: 2ADYD-AT11A

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This 

device may not cause harmful interference, and (2) this device must accept any interference received, including 

interference that may cause undesired operation. 

Changes or modifications not expressly approved by 3D Robotics could void the user’s authority to operate the 

equipment.

Radiation Exposure Statement:

The Solo system has been tested to ensure compliance with FCC-mandated limits for general population radio 

frequency (RF) exposure for an uncontrolled environment. These limits ensure that no harmful effects will result from 

operating Solo according to the standard operating procedures described in this manual. 
47

The body’s Specific Absorption Rate (SAR) for the Solo controller is 1.33 watts per kilogram (W/kg) in compliance 

with the FCC limit of 1.6 W/kg. To reduce exposure to RF energy, hold Solo at least 20 cm away from your body at 

all times during operation. Do not operate the Solo controller co-located or in conjunction with any other antenna or 

transmitter.

 

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not 

cause harmful interference.

8.3.2 Canada - Industry Canada

3DR Solo IC: 12768A-S114A

Model number: S110A

3DR Solo Controller IC: 12768A-AT14A

Model number: AT10A

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following 

two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, 

including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. 

L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) 

l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en 

compromettre le fonctionnement.

IC Radiation Exposure Statement:

The Solo system has been tested to ensure compliance with IC-mandated limits for general population radio 

frequency (RF) exposure for an uncontrolled environment. These limits ensure that no harmful effects will result 

from operating Solo according to the standard operating procedures described in this manual. To reduce exposure 

to RF energy, hold Solo at least 20 cm away from your body at all times during operation. Do not operate the Solo 

controller co-located or in conjunction with any other antenna or transmitter. Changes or modifications not expressly 

approved by 3D Robotics could void the user’s authority to operate the equipment.