User 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 User Manual V8

© 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.
1 Contents 1 Introduction

1

1.1 System Overview1

1.2 Aircraft Overview2

1.3 Controller Overview3

1.4 Operating Parameters4

1.5 Autopilot5

1.6 Propulsion5

1.7 LED Meanings5

2 Setup6

2.1 In the Box - Solo with The Frame6

2.2 In the Box - Solo with 3-Axis Gimbal6

2.3 Battery6

2.4 Controller8

2.5 Propellers9

2.6 Camera 10

2.7 Mobile App 11 3 The Solo Gimbal 16

3.1 In the Box 16

3.2 Gimbal Installation 16

3.3 Gimbal Operation 22 4 Safety 25

4.1 Location 25

4.2 Environmental Awareness 25

4.3 Visual Line of Sight 25

4.4 Flight School 26

4.5 Propellers 26

4.6 GPS 26

4.7 Home Position 27

4.8 Altitude Limit 27

4.9 Emergency Procedures 27

4.10 Flight Battery 28

4.11 Controller 28

4.12 Antenna Configuration 29 5 First Flight 30

5.1 Preflight Checklist 30

5.2 Takeoff 30

5.3 Landing 31

5.4 Return Home 32

5.5 In-Flight Data 34

5.6 Joystick Control 35 6 Using the Solo App 38

6.1 App Interface Overview 38

6.2 Smart Shots 44

6.3 Selfie 45

6.4 Cable Cam 47

6.5 Orbit 48

6.6 Follow 50
iv

7 Alerts 52

7.1 Preflight Errors 52

7.2 In-Flight Errors 53

8 Advanced Settings 56

8.1 Advanced Flight Modes 56

8.2 Enabling Advanced Flight Modes 57

8.3 Accessing Advanced Flight Modes 57

8.4 Home Position Safety 57

8.5 Performance Adjustment 57

8.6 Units 58

8.7 Maximum Altitude Adjustment 58

8.8 Map Tile Provider (Android only) 58

9 Support 59

10 Maintenance 60

10.1 Controller Battery Replacement 60

10.2 Calibrations 60

10.3 Pairing the Controller 61

10.4 Legs 62

10.5 Battery Tray 66

10.6 Motor Mods 67

10.7 Factory Reset 69

11 Appendix 71

11.1 Specifications 71

11.2 Warranty 72

11.3 Regulatory Compliance 72
v

Figures

Figure 1.1.3.1: Solo System Context Diagram1

Figure 1.2.4.1: Solo Overview2

Figure 1.3.10.1: Controller Overview4

Figure 1.4.1: Solo Operating Parameters4

Figure 1.6.1: Solo Motor Order5

Figure 2.1.1: Solo Parts6

Figure 2.2.1: Solo with 3-Axis Gimbal Parts6

Figure 2.3.1.1: Charing the Solo Smart Battery7

Figure 2.3.2.1: Powering Solo8

Figure 2.4.1.1: Controller Charging8

Figure 2.4.2.1: Power On Controller9

Figure 2.5.1.1: Attach Propellers9

Figure 2.6.1.1: Attach Camera 10

Figure 2.6.2.1: Camera Configuration Process 10

Figure 2.7.3.1: Connect to Solo Link 11

Figure 2.7.4.1: App - Settings Menu 11

Figure 2.7.4.2: App - Wi-Fi Settings 12

Figure 2.7.5.1: Controller Preflight Update Prompt 12

Figure 2.7.5.2: App - Software Update 12

Figure 2.7.5.3: App - Connecting Instructions 12

Figure 2.7.5.4: App - Instructions List 13

Figure 2.7.5.5: App - Download Update 13

Figure 2.7.5.6: App - Start Update 13

Figure 2.7.5.7: Controller - Updating 13

Figure 2.7.5.8: App - Update Disconnection Confirmation 14

Figure 2.7.5.9: Controller Update Complete Displays 14

Figure 2.7.5.10: Controller - Waiting for Solo 14

Figure 2.7.5.11: App - Update Success 14

Figure 2.7.6.1: App - Viewing Video 15

Figure 3.1.1: Solo Gimbal Parts 16

Figure 3.2.1.1: Removing The Frame 17

Figure 3.2.2.1: Connecting cables 17

Figure 3.2.3.1: Positioning the Gimbal Cable 18

Figure 3.2.3.2: Positioning the HDMI Cable 18

Figure 3.2.4.1: Mounting the Gimbal 19

Figure 3.2.5.1: HDMI Plug Positioning 19

Figure 3.2.5.2: Attach GoPro 20

Figure 3.2.5.3: Fasten Camera 20

Figure 3.2.6.1: GoPro Weight Balancing 20

Figure 3.2.7.1: Adding the Sunshade 21

Figure 3.2.9.1: Camera Configuration Process 22

Figure 3.3.1.1: Gimbal Controls 22

Figure 3.3.2.1: LED Gimbal Signal 23

Figure 4.4.1: App Flight School 26

Figure 4.9.5.1: Controller - Motor Shutoff 28

Figure 4.12.1: Controller Antenna Orientation 29

Figure 5.2.1.1: Controller - Start Motors Prompt 30

Figure 5.2.2.1: Controller - Takeoff Prompts 31

Figure 5.3.1: Controller - User-Initiated Landing 31

Figure 5.4.1: Return Home Button 32

Figure 5.4.1.1: The Cone Zone 32

Figure 5.4.2.1: Above Return Home 33

Figure 5.4.2.2: Within the Cone 33

Figure 5.4.2.3: Below Return Home and Outside the Cone 34

Figure 5.5.1: Controller - In-Flight Data 34

Figure 5.6.1: Controller Left Joystick 35

Figure 5.6.2: Throttle Joystick Behaviors 35
vi

Figure 5.6.3: Yaw Joystick Behavior 36

Figure 5.6.4: Controller Right Joystick Controls 36

Figure 5.6.5: Pitch Joystick Controls 37

Figure 5.6.6: Roll Joystick Controls 37

Figure 6.1.1: Solo App Home Screen 38

Figure 6.1.1.1: App - Main Interface 39

Figure 6.1.1.2: Advanced telemetry data 39

Figure 6.1.2.1: Initial Map Screen 40

Figure 6.1.2.2: Map Screen During Caching 40

Figure 6.1.3.1: Camera button states 41

Figure 6.1.3.2: Tap for Camera Settings 42

Figure 6.1.3.3: In-App Camera Settings 42

Figure 6.1: App - Main Screen 44

Figure 6.2: App - Shot List 44

Figure 6.3.1: Selfie Path and Settings 45

Figure 6.3.1.1: App - Selfie Activation 45

Figure 6.3.2.1: App - Selfie Control 46

Figure 6.3.2.2: Controller - Selfie Control 46

Figure 6.3.3.1: App - Selfie Settings 46

Figure 6.4.1.1: App - Cable Cam Setup 47

Figure 6.4.2.1: App - Cable Cam Controls 47

Figure 6.4.2.2: Controller - Cable Cam Controls 48

Figure 6.4.3.1: App - Cable Cam Settings 48

Figure 6.5.1.1: App - Orbit Setup 48

Figure 6.5.2.1: App - Orbit Controls 49

Figure 6.5.2.2: Orbit Controls 49

Figure 6.5.3.1: App - Orbit Settings 49

Figure 6.6.1.1: Follow in Look At Me mode 50

Figure 6.6.1.2: Follow in Follow mode 51

Figure 6.6.2.1: Follow Controls 51

Figure 7.1.1.1: Controller - Calibration in Progress Alerts 52

Figure 7.1.1.2: Controller - Uneven Surface Alert 52

Figure 7.1.1.3: Controller - Re-Calibration Required Alerts 52

Figure 7.1.1.4: Controller - Calibration Error Alert 53

Figure 7.1.2.1: Controller - Service Alerts 53

Figure 7.2.1.1: Controller - Altitude Limit Alert 53

Figure 7.2.2.1: Controller - App Connection Alerts 54

Figure 7.2.3.1: Controller - Controller Disconnected Alert 54

Figure 7.2.3.2: Controller - Controller Signal Alerts 54

Figure 7.2.4.1: Controller - GPS Signal Alerts 55

Figure 7.2.5.1: Controller - Low Battery Alerts 55

Figure 7.2.5.2: Controller - Critical Battery Alert 55

Figure 7.2.6.1: Controller - Controller Battery Alerts 55

Figure 8.2.1: App - Advanced Settings 57

Figure 8.3.1: App - A and B Presets 57

Figure 8.5.1: App - Performance Sliders 58

Figure 8.6.1: App - Change Units 58

Figure 8.7.1: App - Altitude Limit 58

Figure 9.1: App - Submit Trouble Ticket 59

Figure 10.1.1: Controller Battery Installation 60

Figure 10.2.1.1: App - Compass Calibration Setup 60

Figure 10.2.1.2: App - Compass Calibration Procedure 61

Figure 10.2.2.1: App - Level Calibration 61

Figure 10.3.1: Pair Button 61

Figure 10.3.2: Detected Solo 62

Figure 10.3.3: Solo Paired 62

Figure 10.4.1: Leg Types 62

Figure 10.4.1.1: Standard Leg Replacement Process 63

Figure 10.4.2.1: Detaching the Antenna from the Leg 63

Figure 10.4.2.2: Attaching a New Leg with an Existing Antenna 64
vii

Figure 10.4.2.3: Attaching an Existing Antenna to a New Leg 64

Figure 10.4.3.1: Compass Connector on Mainboard 65

Figure 10.4.3.2: Insert New Leg with Compass 65

Figure 10.5.1.1: GPS Cover Removal 66

Figure 10.5.2.1: Battery Tray Removal 66

Figure 10.5.2.2: Battery Tray Detachment 66

Figure 10.6.1: LED Cover Removal 67

Figure 10.6.2: Motor Pod Removal 67

Figure 10.6.3: Motor Pod Disconnection 68

Figure 10.6.4: Motor Pod Connection 68

Figure 10.6.5: Motor Pod and LED Cover Attachment 68

Figure 10.7.1: Pair Button 69

Figure 10.7.2: Strobing Pairing Light 69

Figure 10.7.3: Controller Reset 69

Figure 10.7.4: Controller Update 70

Figure 10.7.2.5: Controller Screen After Reset 70
1

1 Introduction

We designed Solo to be the perfect aerial-video tool. It’s powerful, simple and reliable with intuitive Smart Shots

inspired by our favorite cinema pilots. With Solo, you don’t need a professional camera crew, you can get the

perfect shot every time. We’re excited to share our passion with you and help you see your world from a new

perspective. Join us in capturing the next evolution of creative videography

1.1 System Overview

The Solo system includes Solo, the Controller, and the Solo App. As the operator, you interact with the controller 

and app on the ground, and the controller communicates with Solo during flight.

1.1.1 Solo

Solo is a small unmanned aerial vehicle (UAV) powered by four 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 control mechanisms and displays in-flight data on a full-color screen. Using twin longrange antennas, 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 managing the transmission of 

all control inputs to Solo.

1.1.3 App

The Solo App outputs a live video stream from an onboard GoPro® camera to an Android or iOS device. The App 

allows you 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 SoloLink network to receive video and telemetry 

outputs and send control inputs.

Figure 1.1.3.1: Solo System Context Diagram

1.1.4 3-Axis Gimbal

The 3-Axis Solo Gimbal provides greater control of GoPro® HERO cameras. The Gimbal is included, fully installed, 

in the package Solo with 3-Axis Gimbal and is also available separately for Solo. This powerful accessory is fully 

covered in Chapter 3 of this manual. 

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 be powered only

when the battery is connected. 

1.2.2 Motors and Propellers

Solo’s arms are labeled 1 through 4 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; when armed for flight, the two front arms (#1 and

#3) display white, and the two rear arms (#2 and #4) display red. This LED scheme mimics the headlight and taillight

style of a car.

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 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 and use Smart Shots.

1.3.2 Joysticks

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

use with Smart Shots. 

1.3.3 Screen

The controller’s full-color screen provides live in-flight data and prompts for certain Solo functions.

1.3.4 Power Button

Press the power button once to check the controller’s battery level. Hold the power button until you see the 

controller startup screen to power on the controller.

1.3.5 Fly Button

The Fly button lets you control Solo’s main flight functions: starting motors, takeoff, land, and activating GPS 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 at any time.

1.3.8 Option Buttons

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

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

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 dipole antennas communicate with Solo during flight. See Section 4.12 for proper 

antenna configuration.

1.3.10 Gimbal Controls

Use the paddle, buttons, and dial on the top of the controller are used to control the Solo Gimbal. You can also use 

them in some Smart Shots.
4

Figure 1.3.10.1: Contr

Antennas

Mobile-device holder

Gimbal controls

Joysticks

Screen

Pause

Return home

Fly

Power

Options

oller Overview

1.4 Operating Parameters

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

and behaviors may vary significantly if flying in that conditions violate the parameters listed below.

Figure 1.4.1: 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.

** To adjust maximum altitude, see Section 8.7.

*** Depending on environmental conditions

 **** This top speed corresponds to Solo when operating in Fly mode. Maximum speeds for advanced 

modes may vary; see Section 8.1 for more information.

Estimated flight time up to 25 minutes*

Default maximum altitude 150 ft. (46 m) above ground level**

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

Payload capacity 1 lb. (450 g)

Cruise speed 18 mph (8 m/s)

Maximum speed 33 mph (15 m/s)****

Wind speed limitation 25 mph (11 m/s)

Operating temperature 32° F - 113° F (0° C to 45° C)
5

1.5 Autopilot

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

the MAVlink communication protocol. 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 ArduPilot’s

inertial navigation and position-estimation algorithms and combined with control inputs to send commands to Solo’s

propulsion system.

1.6 Propulsion

Solo uses four brushless 880 Kv motors and four self-tightening 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 1.6.1: So

03 01

02 04

lo Motor Order

1.7 LED Meanings

Solo’s four LEDs indicate its status during startup and in flight.

• Solid white (front) and red (back): Ready to fly, standard flight configuration

• Pulsing white (front) and red (back): Solo is flying under autopilot control

• Flashing red alternating front and back: Controller signal lost

• Flashing rainbow: Update in progress

• Solid green, then turning off one-by-one: Startup successful

• Solid green without turning off automatically: Startup unsuccessful, please restart Solo
6

2 Setup

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

2.1 In the Box - Solo with The Frame

The Solo package includes the Solo Vehicle with The Frame (for mounting a GoPro camera), the Solo Controller, 

propellers (four plus two spares), the Solo Smart Battery, the Solo Smart Battery charger, and a charger for the Solo 

Controller. 

Figure 2.1.1: Solo Parts

2.2 In the Box - Solo with 3-Axis Gimbal

The Solo with 3-Axis Gimbal package includes the Solo Vehicle with 3-Axis Gimbal installed, the Solo Controller, 

propellers (four plus four spares), the Solo Smart Battery, the Solo Smart Battery charger, and a charger for the Solo 

Controller. 

Figure 2.2.1: 

Solo with Installed Gimbal

Four silver-top props

& four black-top props

Controller

Solo charger Controller charger

Solo with 3-Axis Gimbal Parts

2.3 Battery

Solo is powered by the rechargeable Solo Smart Battery, which provides up to 25 minutes of flight time per full 

charge. (Note: Flight time depends on payload, wind conditions, elevation, temperature, humidity, flying style and 

Solo Three silver-top props

& three black-top props

Controller

Solo charger

Controller charger
7

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 4.10, Flight Battery, on page 28.

2.3.1 Charging

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

display the current power level. The Solo Smart 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.

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. An additional indicator on the battery charger turns from red to green when

the battery is fully charged. The battery takes approximately 1.5 hours to charge to 100%.

The optimal storage charge for the Solo Smart Battery is 50%. Storing the Solo Smart Battery at an excessively 

depleted charge (7 percent and under) for an extended period might result in shorter battery life or permanent 

damage to the battery. 

Figure 2.3.1.1: Charing

Charge indicator

Charge indicator

 the Solo Smart Battery

2.3.2 Powering

To power Solo, insert the Smart Battery into Solo’s battery bay and slide the battery forward until it clicks into 

place. To turn on Solo, press and hold the battery power button. When Solo powers on, the battery displays an 

LED animation and you hear the startup tone. Power Solo only with the designated 3DR Solo Smart Battery; using a 

different battery can permanently damage Solo.

Before powering on, make sure Solo is level and keep Solo still during 

startup 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.
8

Figure 2.3.2.1: Poweri

1 Slide to connect

2 Hold to power

ng Solo

2.4 Controller

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

2.4.1 Charging

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

controller or cause a fire.

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 three hours to charge to 100%.

Figure 2.4.1.1: Controller Charging
9

2.4.2 Powering

To power on the controller, press and hold the controller power button until you see the startup screen.

Figure 2.4.2.1: Power On Controller

2.5 Propellers

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

2.5.1 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 2.5.1.1: Attach Propellers
10

2.6 Camera

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

Note: If you have Solo with 3-Axis Gimbal or have installed the Gimbal separately, see Section 3.2.5, Camera 

Installation, on page 19.

2.6.1 Attaching GoPro to The Frame

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.

Figure 2.6.1.1: Attach C

GoPro® The FrameTM

Your GoPro®

HERO 3, 3+ or 4 Mount your GoPro®

upside down.

Connect the HDMI 

cable.

amera

2.6.2 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 2.6.2.1

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

SETUP ORIENTATION

OFF

:OFF

:UP

:VIDEO

ORIENTATION

OFF

:OFF

:AUTO

:VIDEO

EXIT

EXIT

RESET CAM

: Camera Configuration Process

Make sure the Wi-Fi on your GoPro® is turned OFF. Otherwise, it can 

interfere with Solo’s communication signals and cause unexpected 

behavior.
11

2.7 Mobile App

The Solo App provides a streaming-video link to a mobile device and a simple graphic interface for using Smart 

Shots and other advanced Solo features.

2.7.1 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.

2.7.2 Register

The first time you run the App, you’re prompted for registration information and the Solo serial number. You also 

have the option to view some intro videos. Once you’ve completed this process, you’re taken to the home screen of 

the App.

2.7.3 Connect to Solo

To connect the App to Solo’s 3DR Link Wi-Fi network, tap the Connect button on the home page of the App and 

follow the prompts. When in the Wi-Fi settings on the mobile device, connect to SoloLink_####. Enter the temporary 

password “sololink”. Once connected, return to the app to continue. Both Solo and the controller must be powered 

on to connect to the App.

Figure 2.7.3.1: Connect to So

Settings

Airplane Mode

WI-FI

Bluetooth

Cellular

Solo_Link-####

On

Notifications

Control Center

Do Not Disturb

LTE 7:34 PM

lo Link

2.7.4 Change SoloLink Password

Once connected to Solo Wi-Fi, change your password to secure your SoloLink network as follows: Access the 

Settings section by tapping Settings at the bottom-right of the home screen, then choose Solo to access the 

options for your drone.

Figure 2.7.4.1: App - Settings Menu

In the Solo section, select Solo Name & Wi-Fi, and set a new password. The password should be between 8 and 32 

characters with no spaces. Select Apply to enable your changes. If you forget your SoloLink password, perform the 

factory reset procedure described in Section 10.7 to reset the password to the temporary password (sololink).
12

Figure 2.7.4.2: App - Wi-Fi Settings

2.7.5 Update

Before your first flight, use the App to perform the required first-flight update of Solo and the Controller. The

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

are powered, the Controller has at least 50% battery remaining, and the app is connected to Solo Wi-Fi. The total

update process can take up to 10 minutes.

Figure 2.7.5.1: Controller Preflig

preflight update

Required before first flight!

Use 3DR Solo App to update

ht Update Prompt

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

Figure 2.7.5.2: App - Software Update

Because your mobile device has never connected to this Solo before, you will need to link your device with Solo

Wi-Fi (SoloLink). 

Figure 2.7.5.3: App - Connecting Instructions
13

Then follow these instructions to connect to Solo Wi-Fi:

Figure 2.7.5.4: App - Instructions List 

Once connected, return to the App and you will be notified of the current version you are about to update to. To 

continue, select Download Update. For this step you will need an Internet connection, either cellular data or Wi-Fi. If 

you opt to use Wi-Fi, you’ll need switch from SoloLink to your Wi-Fi network.

Figure 2.7.5.5: App - Download Update

When the App detects an active connection with the controller, it prompt you to begin the update. (Solo and the 

controller must be powered on to connect to Solo Wi-Fi.) To start the update, select Begin.

Figure 2.7.5.6: App - Start Update

While the update is in progress, the controller shows the controller updating display. The controller completes a full 

restart as part of the update process, which can take up to five minutes.

Figure 2.7.5.7: Controller - Updating

Controller updating

Update will take about 5 minutes

Please ensure charger is connected

Controller may go dark while updating
14

Because the Controller must restart as part of the update process, your device will lose its connection to Solo Wi-Fi. 

When you see the following screen, select Next to continue. 

Figure 2.7.5.8: App - Update Disconnection Confirmation

The Controller restarts and displays a green checkmark to indicate its update was successful. When you see the 

green checkmark on the controller, reconnect to Solo Wi-Fi in the app and press A on the controller to continue the 

update. 

Figure 2.7.5.9: Controller Update Complete Displays

After you press A, Solo restarts to complete the update. While Solo restarts, the controller displays “waiting for 

Solo.”

Figure 2.7.5.10: Controller - Waiting for Solo

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

App shows that the software is up to date. After displaying green, Solo’s LEDs return to the standard white-and-red 

pattern. If you do not see white-and-red LEDs after a few minutes following the update, restart Solo.

Figure 2.7.5.11: App - Update Success

Controller updated Please reconnect to Sololink wifi 

Press to continue

Press when LEDs are green

waiting for Solo
15

2.7.6 View Video

After the update is complete, to view video in the app, first make sure Solo, the controller, and the GoPro® are 

powered on, and that the App is connected to Solo via Wi-Fi. Then, on the App home screen, tap Fly Solo.

Before your first flight, verify that you can see video. If the video is inverted, see section 2.6.

Figure 2.7.6.1: App - Viewing Video
16

3 The Solo Gimbal

The optional Solo Gimbal holds your GoPro® camera and lets you control it remotely. It taps Solo’s intelligence to 

get perfectly automated shots, plus rock-solid footage, GoPro® control and charging, and long-range HD video 

feed. With the 3-Axis Solo Gimbal, you get:

• Smooth and fluid HD footage every flight. 

• Start and stop recording (HERO4 models) while you fly so you can pick and choose the shots you want.

• Footage stabilized to within 0.1 degree of pointing accuracy for enhanced Smart Shots.

• Fine-grain camera tilt control, including angle presets and instant speed adjustment. 

Note: If you purchased the Solo with 3-Axis Gimbal package, skip to section “Camera Installation” on page 19.

3.1 In the Box

The Solo 3-Axis Gimbal package includes the Solo Gimbal, the sunshade, four balance weights for the GoPro® 

camera, and a screwdriver for installing the Gimbal. 

Figure 3.1.1: Solo Gimbal Parts

To install the Solo Gimbal and start utilizing its features, follow these Solo Gimbal installation instructions:

3.2 Gimbal Installation

Before installing the Solo Gimbal, make sure the firmware on Solo and your GoPro as well as the Solo App on your 

mobile device are up to date for the best performance.

Recommended versions:

• Solo: 1.2.0 or higher

• Solo App: 1.2.0 or higher

• GoPro: 3.00.00 or higher

3.2.1 Remove The Frame

1. Flip Solo over to access the bottom of the vehicle.

2. The Frame is secured to Solo by three captive screws (permanently attached to the mount to prevent losing 

them). Since these screws don’t come out all the way, loosen each screw until they can’t be backed out any 

further.

3. Detach the mount from Solo by gently lifting up on it.

4. Route the HDMI cable out through the mount to complete the separation.

Balance weights (4)

Solo Gimbal

Sunshade Screwdriver
17

Figure 3.2.1.1: Removing The Fram

Turn over Solo.

Loosen the three screws 

securing the mount.

Gently 

detach

the plate.

Free the cable, 

and remove the mount.

e

3.2.2 Connect Gimbal

1. Remove the foam insert holding the gimbal in place and set it to the side (this piece is used to help protect 

the gimbal during travel).

2. On the bottom of the gimbal plate are two ports: one for the HDMI cable and one for the gimbal cable. Plug 

in the cables running from Solo to their respective ports on the gimbal, as shown following.

Connect 

gimbal cable.

Connect 

HDMI cable.

Figure 3.2.2.1: Connecting cables

3.2.3 Position Cables

With both cables now connected to the Solo Gimbal, it is important to position each cable out of the way of other 

internal components. When configuring the HDMI and gimbal cables, the HDMI cable should rest on top of the 

gimbal cable.

1. Position the gimbal cable out out of the way by pushing any slack towards the front of the Solo Shell.
18

Tuck the Gimbal Cable’s slack

into the front of the Solo body

Figure 3.2.3.1: Positioning the Gimbal Cable

2. Loop the HDMI cable around and inside the front of the body, pushing any extra slack towards the pocket of 

Arm #01 as seen below.

Tuck the HDMI Cable’s slack

into the side of the Solo body

Figure 3.2.3.2: Positioning the HDMI Cable

3.2.4 Mount the Gimbal

1. Position the gimbal plate over the opening in the Solo Shell, making sure that the three screw positions are 

aligned (two in the back and one in front).

2. Slide the back of the plate in first, and then pinch the two front prongs in and down to insert the plate.
19

Figure 3.2.4.1: Mounting the Gimbal

3. When the plate is inserted and resting flush with the Solo Shell, tighten each of the three captive screws.

If the plate isn’t resting flush with the Solo Shell, the most likely cause is that the screws didn’t catch correctly. If the 

screws are misaligned, do not try to tighten them. Back out any crooked screws with the screwdriver, then realign 

them manually before tightening with the screwdriver.

3.2.5 Camera Installation

The 3-Axis Solo Gimbal holds your GoPro® HERO 3, 3+ or 4. To install your GoPro camera, follow these directions: 

1. To create space for your GoPro inside the camera housing, move the the rubber HDMI plug out and away 

from the camera housing.

Figure 3.2.5.1: HDMI Plug Positioning

2. Slide your GoPro into place from the front and gently press it in until it is flush with the back of the camera 

housing.

Have extended feet? (Optional)

Install for added clearance.
20

Figure 3.2.5.2: Attach GoPro

3. Take the rubber HDMI plug and insert into the exposed side of your GoPro. This simultaneously fastens the 

GoPro into place and secures the HDMI connection. Your GoPro is now installed!

Figure 3.2.5.3: Fasten Camera

3.2.6 Add Balance Weights

Out of the box, the Solo Gimbal is perfectly weighted for use with the GoPro HERO4 Black. If you are using the 

GoPro HERO4 Silver or the GoPro HERO3+, then you need to add balance weights to optimize these cameras for 

use with the Solo Gimbal. To balance your GoPro, attach the corresponding balance weights to the threaded inserts 

on the top and bottom of the camera housing, as shown following. 

Figure 3.2.6.1: GoPro Weight Balancing

GoPro Weight Balancing®

HERO4 Black No blalance weights needed

HERO4 Silver Add the 2.7g balance weights

HERO3+ Silver Add the 6g balance weights 
21

3.2.7 Add Sunshade

Flying on a sunny day? Use the sunshade to protect your video from glare. Simply press-fit the sunshade onto the 

GoPro lens to install.

Figure 3.2.7.1: Adding the Sunshade

3.2.8 Update Your GoPro

The GoPro HERO4 Silver and HERO4 Black are fully optimized to work with the Solo Gimbal. To use functions like 

Start Recording and Stop Recording, your GoPro HERO4 must be fully up to date. You can update your GoPro in 

either of two ways: Update through an iOS or Android mobile device, or through your computer.

Option 1: Download the Update Using your iOS or Android Device

1. Make sure you have the GoPro App downloaded onto your iOS or Android device, and that you have an SD 

card with plenty of available memory installed in your GoPro.

2. On the GoPro camera, go to Setup and then Wireless. Choose the Pair/Connect option, then GoPro App, 

and then follow the directions.

3. Open the GoPro app.

4. Connect your camera.

5. When you get to the screen with the live video preview, tap the downloads button at the top of the screen. 

It’s a circle with an arrow in the middle.

6. Follow the prompts to download and install the update.

7. Before flying, make sure the GoPro’s Wi-Fi is off! Hold the button on the side.

Option 2: Download the Update Using Your Computer

1. On your computer, navigate to ‘gopro.com/update’.

2. Choose your camera model from the list on the left.

3. Select “Update Your Camera Manually”.

4. Follow the instructions to register and update your GoPro.
22

3.2.9 Recommended GoPro Settings 

For optimal results, adjust your camera settings to these recommended values. If you’re using the Solo Gimbal with 

the GoPro Hero3+ Black or either Hero4 model (Silver or Black), you can change settings in flight: For details, see 

Section 6.1.3, Camera Controls and Settings, on page 40.

Figure 3.2.9.1: Camera Configuration Process

3.3 Gimbal Operation

The Solo Gimbal is a nearly autonomous tool. For example, it handles camera balancing and stabilization for you 

automatically. However, we recommend that you be aware of some operational aspects of the Solo Gimbal, as well 

as a handful of controls you can use. 

3.3.1 Controlling the Solo Gimbal

To manually adjust the tilt angle of the Solo Gimbal, use the tilt control paddle to move the gimbal up and down. 

You can also set up an automatic tilt control using the ‘1’ and ‘2’ button presets. These buttons are located above 

and below the tilt speed dial, as shown in Figure 3.3.1.1. To tilt to a preset angle, simply press either button and use 

the dial to adjust the tilt speed. To save a new preset angle, hold ‘1’ or ‘2’. 

Figure 3.3.1.1: Gimb

Solo controller (top view)

Automatic tilt control:

Press 1 or 2 to tilt to a preset angle,

hold 1 or 2 to save new angles

Manual tilt control

Adjust tilt speed

al Controls

Resolution 1080P or 2.7K

Field of View Medium 

Low Light Off

Spot Meter Off 

Protune On (if available)

White blance Auto 

Color GOPRO

ISO 400 

Sharpness Medium 

EV Comp 0

Make sure that the Wi-Fi on your GoPro® is turned OFF. Otherwise, it 

can interfere with Solo’s communication signals and cause unexpected 

behavior.
23

3.3.2 LED Signals

On the back of the Solo Gimbal is an LED that signals different status modes of the gimbal. 

Figure 3.3.2.1: LED Gimbal Signal 

The Gimbal LED displays several different signals: 

• Breathing green: the gimbal is functioning properly and ready for use. 

• Blinking orange: the gimbal is booting up (commonly seen while performing an update). 

• Blinking blue: the gimbal has lost the communication signal. Please contact customer support. 

• Breathing red: the gimbal is in a temporary fault mode. Restart the gimbal, and if the issue persists, please 

contact customer support. 

• Solid red: the gimbal is in an unrecoverable fault mode. Restart the gimbal, and if the issue persists, please 

contact customer support. 

3.3.3 Troubleshooting

If the Solo Gimbal is not working properly, follow the steps below to troubleshoot the problem: 

3.3.3.1 The gimbal is not centered with respect to Solo

• Symptoms: The gimbal angle seems cockeyed or the beauty plate (at the top of the gimbal) 

does not mount flush with the Solo bottom surface.

• Reason: Improper cable routing can cause the gimbal to be off-center. This also hurts gimbal 

performance because of interference on dampers. 

• Resolution: Make sure the HDMI cable is coiled from left to right in the big radius following 

the contour of the Solo. The Gimbal Data cable can interfere, make sure the Gimbal Data 

cable is unwound and is not twisted. For details, go to https://3drobotics.com/kb/gimbalinstallation/. 

3.3.3.2 Frozen GoPro

• Symptoms: GoPro doesn’t respond to a button press, either on the camera (physical button) 

or in the Solo App.

• Reason: GoPro firmware is not up to date.

• Resolution: Your GoPro model must be Hero 3+ or higher. If so, follow these steps:

1. Remove the GoPro from the gimbal.

2. Remove the battery from the GoPro.

3. Wait 20 seconds.

4. Replace the battery.

5. Power on the GoPro. At this point, make sure the GoPro firmware is the latest version.
24

3.3.3.3 The gimbal is not turning on or responding

• Symptoms: Gimbal appears not to be receiving power.

• Reason: Possible connectivity issues.

• Resolution: Check the LED on the gimbal (behind the GoPro) and refer to the color guide 

in Section 3.3.2. If the LED is off, make sure the gimbal connector is plugged in and seated 

properly.

If none of the preceding steps resolved your gimbal issue, please contact customer support at 3dr.com/support.
25

4 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 of drugs or alcohol or when your ability to operate Solo safely is impaired.

• Use common sense to avoid unsafe situations and always operate Solo responsibly.

4.1 Location

When choosing an appropriate place to fly Solo, keep these location factors in mind:

• 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 a distance of at least 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 five 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.

4.2 Environmental Awareness

Don’t fly Solo in extreme weather conditions such as rain, high winds, snow, or fog. Such weather conditions can 

permanently damage Solo or cause instability in flight.

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. 

4.3 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.

Read and understand these important safety instructions before your 

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

Physical obstructions can also block communication signals with the controller, 

causing Solo to attempt to Return Home along an obstructed path
26

4.4 Flight School

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

sure your device is connected to the Internet). Flight School provides useful tips for learning to operate Solo safely 

and correctly.

Figure 4.4.1: App Flight School

4.5 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 at least 20 feet 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 automatically detects the landing and stops the motors. Do not approach Solo 

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

4.6 GPS

Solo requires an active GPS signal for flight. After powering on, Solo can take up to five minutes to acquire a strong 

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

requirements define a GPS lock:

• Reported horizontal position accuracy < 16 ft. (5 m)

• Reported speed accuracy < 2 mph (1 m/s)

• Number of satellites ≥ 6

• Difference between GPS and inertial navigation vertical velocity < 2 mph (1 m/s)

If satellite coverage drops beneath a reliable threshold during flight, Solo will automatically switch to Fly:Manual 

mode. This mode does not provide the flight-stabilizing GPS functionality, but it still lets you control Solo. 

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.
27

4.7 Home Position

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

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

started, assuming GPS lock has been achieved. If Solo has taken off without GPS lock and then achieves GPS lock

mid-flight, the home position will be set to wherever GPS lock was acquired. The location of the home position

depends on GPS signal strength and is usually within one to two meters of accuracy. 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

8.4.

4.8 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 150 ft. (46 m). If Solo reaches the altitude limit, it stops ascending 

and limits throttle input to stay below the altitude limit. To adjust the altitude limit, see Section 8.7. FAA

regulations mandate a maximum altitude of 400 ft. to avoid potential conflicts with manned aircraft and represents a

safe line-of-sight altitude. 

4.9 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.

4.9.1 Pause

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

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

During Return Home or Land, you can pause Solo and stop the landing by pressing Pause. Pause is available only 

with GPS lock.

4.9.2 Regain Manual Control 

Keep the controller easily accessible at all times during flight, including during 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.

4.9.3 Return Home

If Solo acquired GPS lock prior to takeoff, you can return it to the launch point and land by pressing Return Home 

on the controller. If you receive a low-battery notification or want to quickly end your flight, press Return Home. Solo 

does not avoid obstacles while returning home; always verify that the return path is clear before activating Return 

Home.

4.9.4 Land

To land Solo at its current position, press and hold the Fly button. To exit the landing procedure at any time, lift the 

throttle. If Solo does not have GPS lock, automatic positioning is not available as Solo descends, and drifting can 

occur depending on environmental conditions.
28

4.9.5 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. Use the emergency motor shutoff 

only as a last resort.

Figure 4.9.5.1: Controller - Motor Shutoff

4.10 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. 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. To prevent a hazard in case of fire or explosion, disconnect 

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

materials. Do not dispose of the battery in the trash; bring it to a 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 (18° C) to 82° (28° C) F environment, between 45-85% 

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

temperatures or direct sunlight. 

4.11 Controller

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

door on 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 replace or upgrade the controller battery. Upgraded controller batteries with double the 

capacity are available from store.3dr.com or an authorized retailer. In the case where you need to store the 

extra controller battery, store it in a 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. 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 flight battery.

Spot lock

Hold + 

 to shut off motors

FLY 12

Spot lock

Hold + 

 to shut off motors

FLY 12
29

4.12 Antenna Configuration 

For the strongest connection to Solo, position the antennas down and away from the controller so they are 

approximately perpendicular to Solo in flight, and tilt each antenna out and away from one another at a 20° angle. 

Figure 4.12.1: Controller Antenna Orientation

20°
30

5 First Flight

This section covers basic Solo flight procedures, including takeoff, landing, and manual control.

5.1 Preflight Checklist

Before flying, check the following conditions:

5.1.1 Location

» Your current location and environmental conditions are suitable for flight. (Section 4.1)

» Solo is on a level surface at a clear launch point a sufficient distance from yourself and others. (Section 4.1)

5.1.2 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.

5.1.3 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)

5.1.4 Video (Optional)

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

» The GoPro® is recording. If have the Solo Gimbal and the GoPro HERO4, you can start and stop recording midflight. You can also change camera settings in flight while not recording.

5.2 Takeoff

The takeoff process has two steps: start the 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.

5.2.1 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. To stop the motors, press the Pause button any time Solo is on the ground with the motors spinning.

Figure 5.2.1.1: Controller - Start Motors Prompt

Flying close to obstacles like buildings and trees can reduce GPS 

accuracy and might result in unexpected flight behavior.

Cable Cam Orbit

FLY 12

Hold FLY to start motors

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.
31

5.2.2 Initiating Takeoff

Hold Fly again to initiate takeoff. Solo will rise to 10 feet (3 m) and hover until it receives further control inputs.

Figure 5.2.2.1: Controller - Takeoff Prompts

5.3 Landing

To land Solo at its current location, hold the Fly button. 

Figure 5.3.1: Controller - User-Initiated Landing

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

approaching Solo. If the propellers do not stop, press the controller’s Pause button or use the emergency shutoff 

option described in Section 4.9.5.

Cable Cam Orbit

FLY 12

Hold FLY to take off

Cable Cam Orbit

FLY 12

Hold FLY to take off

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.

Spot lock Rewind

FLY 12

Hold FLY to land

Cable Cam Orbit

5FT

0FT

HOME

30%

FLIGHT BATTERY

ALTITUDE

LAND 12

LANDING COMPLETE

When you command Solo to land, it 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. 
32

5.4 Return Home

The Return Home function brings your flight to an end by recalling Solo to its launch location and landing. You 

can initiate Return Home manually by pressing the Return Home button on the Controller. Alternatively, in certain 

circumstances, Solo initiates Return home autonomously; for details, see Section 7.2, In-Flight Errors, on page 

53. 

Keep in mind that Return Home requires enough battery charge to get back to the launch point. If you need to end 

your flight immediately, land manually or hold the Fly button. Return Home requires GPS lock prior to takeoff.

Figure 5.4.1: Return Home Button

5.4.1 Smart Return Home Functionality

When a call to Return Home is triggered, it is critical that Solo make a swift and safe journey back to the Home 

Position. Among the factors involved in balancing these priorities are:

• The farther away Solo is, the greater the likelihood that it could encounter unforeseen obstacles (buildings, 

trees, etc.). Because of this, longer-distance scenarios benefit from climbing in altitude before traversing 

back home.

• The closer Solo is to the Home Position, measured laterally, the more confident we can be that there are 

fewer obstacles in the return path, and thus the safer it would be for Solo just to land. 

To help eliminate unnecessary ascents in favor of more efficient return flights, we developed the “Cone Zone.”

Figure 5.4.1.1: The Cone Zone

The Cone Zone represents the volume that is least likely to be filled with problematic obstacles. The shape of this 

cone is based on a 1:3 ratio of horizontal distance to altitude. So as your altitude increases, so does the crosssectional area of the cone. Once Solo reaches the boundaries of the cone or is already within the cone, then its main 

priority is to traverse to directly over the Home Position and land.

Always verify that there is a clear path to the home point before activating 

Return Home.
33

5.4.2 Obstacle-Free Cone Zone

The following examples walk you through the different flight scenarios and how the Cone Zone affects the Return 

Home behavior in each scenario.

Case #1: Above the Return Home Altitude

Figure 5.4.2.1: Above Return Home

When a call to Return Home is triggered and Solo is flying above the Return Home Altitude (default: 25m), Solo:

1. Climbs 10m

2. Traverses to the Home Position

3. Descends and lands

Case #2: Within the Cone

Figure 5.4.2.2: Within the Cone

When Solo is inside the cone and Return Home is triggered, Solo:

1. Climbs 2.5m 

2. Traverses to the Home Position

3. Descends and lands