34

Case #3: Below the Return Home Altitude and Outside the Cone

Figure 5.4.2.3: Below Return Home and Outside the Cone

The radius of the Cone Zone expands at a 1:3 ratio of lateral distance to altitude. This means that the Cone radius 

is directly related to the Return Home altitude. As Solo’s altitude increases, so does the radius of the cone. If Solo’s 

lateral distance from the Home Position exceeds this ratio, it is then outside the cone. In the occurrence of a call to 

Return Home, Solo:

1. Either climbs to the boundary of the cone or to the Return Home Altitude, whichever happens first

2. Moves to the Home Position

3. Descends and lands

5.5 In-Flight Data

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

Figure 5.5.1: Controller - In-Flight Data

1 Flight battery percentage remaining 

2 GPS signal strength and number of active satellites

3 Active mode or Smart Shot (“Fly” indicates standard flight.)

4 Controller battery level 

5 Solo Wi-Fi signal strength

6 Horizontal 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
35

5.6 Joystick Control

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

Figure 5.6.1: Controller Left Joystick

To control Solo’s altitude and acceleration, move the left stick vertically.

Figure 5.6.2: 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.
36

To rotate Solo and control orientation, move the left stick horizontally.

Figure 5.6.3: 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 5.6.4: 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 and maintain the 

current orientation

LEFT RIGHT

FORWARD

BACK
37

To control pitch, move the right stick vertically.

Figure 5.6.5: Pitch Joystick Controls

To control roll, move the right stick horizontally.

Figure 5.6.6: Roll Joystick Controls

Activate

Hold until propellers 

start spinning.

Take-off + Lift

Raise just slightly 

for take off

Hover + Land

Lower just slightly

to hover

Left Yaw

Left

Back

Forward

Right

Right Yaw

Deactivate

Hold until propellers

stop spinning

Activate

Hold until propellers 

start spinning.

Take-off + Lift

Raise just slightly 

for take off

Hover + Land

Lower just slightly

to hover

Left Yaw

Left

Back

Forward

Right

Right Yaw

Deactivate

Hold until propellers

stop spinning

Move the right stick 

forward to fly forward.

Move the right stick 

back to fly backward.

Activate

Hold until propellers 

tart spinning.

Take-off + Lift

Raise just slightly 

or take off

Hover + Land

Lower just slightly

o hover

Left Yaw

Left

Back

Forward

Right

Right Yaw

Deactivate

Hold until propellers

top spinning

Activate

Hold until propellers 

start spinning.

Take-off + Lift

Raise just slightly 

or take off

Hover + Land

Lower just slightly

o hover

Left Yaw

Left

Back

Forward

Right

Right Yaw

Deactivate

Hold until propellers

stop spinning

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.
38

6 Using the Solo App

6.1 App Interface Overview

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

The first screen in the App is the home screen:

Figure 6.1.1: Solo App Home Screen

The primary function here is to go to the main screen by tapping Fly Solo on the left side of the screen. Also, if 

you’re not connected to Solo and are using the Android version of the App, a Connect button appears in the top-left 

corner; you can connect to Solo by tapping the Connect button and following the directions. The iOS version of the 

app displays a Connection Instructions button instead. 

Additional controls at the bottom of the App home screen are as follows:

• Settings: Go to the section of the app where you can change setttings for Solo, the Controller, and the App. 

You can also update the software and firmware from here.

• Flight School: Takes you to a listing of instructional videos for getting started with Solo. To view the videos, 

your device must be connected to the Internet.

• Support: Provides resources for solving problems, logging support tickets, and related issues. 

Also, the home screen might display a notice: Software Update Available. This indicates that updated firmware is 

available for Solo, the Controller or both. The update typically features improved performance and new features. To 

get the update, simply tap the notice and follow the directions.
39

6.1.1 Main Interface

This is the screen you’ll use most of the time when flying Solo. It’s available by tapping Fly Solo on the home screen. 

The main screen provides the live video feed from the GoPro camera, telemetry statistics, access to Smart Shots 

and the map view, and more.

Figure 6.1.1.1: App - Main Interface

1. Live video feed

2. Go to home screen

3. Horizontal distance from launch point

4. Altitude

5. Current flight mode

6. Solo battery percentage remaining

7. Controller signal strength

8. Shot List

9. Map view (see following for details)

10. Camera controls (see Section 6.1.3 for details)

11. Alerts and instructions

To toggle advanced telemetry data, tap any of the telemetry readouts at the top of the screen: item 3, 4, 6, or 7. The 

additional information appears as follows:

Figure 6.1.1.2: Advanced telemetry data

1. Solo’s current air speed

2. Number of satellites and HDOP

3. Solo battery voltage and amperage

4. Wi-fi signal strength between Solo and Controller
40

6.1.2 Map View

To access the small map view, swipe left a short distance from the right edge of the app. To full-screen the map, 

swipe left again. To hide the small map, swipe to the right. To return from the full-screen map, tap the picture-inpicture video display at the top-left of the map.

A live map view is normally available only with GPS lock and on devices with mobile data (cellular Internet).

With a Wi-Fi only iOS device, you can cache map data automatically by connecting to the Internet, then opening the 

map in the Solo App and navigating to the area you want to map. Then, when you connect the device to Solo, the 

App automatically remembers the map.

Note: iOS controls the map data cache procedurally; 3DR cannot guarantee its availability. For best results, make 

sure your iOS device has a reasonable amount of free storage.

If you’re using an Android Wi-Fi-only device such as a tablet, with a bit of preparation, you can cache a map section 

and call it up as needed even if mobile data is not available. You need not be connected to Solo to follow these 

steps:

1. Connect your Android device to Internet-enabled Wi-Fi.

2. Open the Solo App and tap Fly Solo. This takes you to the main screen, which informs you that Solo is not 

connected.

3. Position your finger at the right side of the screen and swipe all the way left. This takes you to the map 

screen, which should resemble the following illustration after loading map data:

Figure 6.1.2.1: Initial Map Screen

4. To begin the caching process, tap the Download button ( ) at the right-center of the screen. 

Figure 6.1.2.2: Map Screen During Caching
41

Important: If you do not see the Download button, you can enable it by going to Solo App home screen > 

Settings > Map Tile Provider and choosing Map Box. 

5. Use standard touch-screen gestures to find the map area to cache (that is, the area you’re planning to fly in), 

then, to save the map, tap the “Pan and zoom ...” message at the bottom of the screen. During caching, a 

progress bar appears, and then the message “Map area saved!” appears shortly above the “Disconnected 

...” message.

6. Proceed to the mapped area with your Solo, start flying, and access the map as usual. If the map is fullscreen, and you have a live video feed, the video appears in the picture-in-picture (PiP) rectangle near the 

top-left corner of the screen. To return to the main flying screen, tap the PiP rectangle (whether or not it’s 

displaying video). 

6.1.3 Camera Controls and Settings

The Record button on right side of the main App screen lets you start and stop recording with the GoPro camera 

(3-Axis Gimbal only). When Video Mode is active the button is red, and when Photo Mode is active it’s white. When 

recording video, the red circle changes to a smaller square and the small “LED” icon above the button pulses red. 

To stop recording, tap the square button.

The area just above the button contains status icons. From left to right, these are Camera Roll (recording video to 

the mobile device), GoPro (recording video to the camera), and video-recording status. 

Below the button is a sliders icon that provides access to camera settings. The following illustration shows different 

states of the record button and associated icons:

Figure 6.1.3.1: Camera button states

• A: Video mode, not recording

• B: Video mode, recording (note camera settings disabled)

• C: Photo mode

• D: Video mode, GoPro recording disabled (camera might be off or missing memory card)

• E: Video mode, Camera Roll recording disabled by Camera Settings control
42

To access the camera settings, tap the sliders icon immediately below the record button:

Figure 6.1.3.2: Tap for Camera Settings

Tip: You can change camera settings while flying as long as you’re not recording.

The two camera-settings areas, available from the buttons on the right side of the screen, are Camera Mode and 

Camera Settings:

Figure 6.1.3.3: In-App Camera Settings

• Camera Mode: Determines what happens when you tap the Record button on the main App screen. 

Choose Video Mode for recording continuous video; choose Photo Mode for shooting stills. 

• Camera Settings: Provides access to the following parameters. The available values for each parameter 

vary depending on the GoPro model and other current parameter values. For details, consult your GoPro 

manual. For recommended values, see the table in Section 3.2.9, Recommended GoPro Settings, on page 

22.
43

Note: All of these settings apply to Video Mode only, except for Photo Resolution, which applies to Photo 

Mode only.

• Video Resolution (in pixels): The resolution the camera uses to capture video. To set still-image 

resolution, use the Photo Resolution setting instead.

• FPS: Frames per second.

• FOV: Field of View

• Low Light: On or off

• Protune: On or off

• Photo Resolution: The resolution the camera uses to capture still images in Photo mode.

• GoPro Model: Choose the model of GoPro camera you’re using. This setting determines the available 

parameter values.

• Save to Camera Roll: When on and recording video to the camera, the mobile device also records the 

video received by the app from Solo to its internal memory.

The Camera Roll video is available via the same methods as video recorded directly with the mobile 

device. For instance, if using an iOS device, you can access the Camera Roll video from the Photos 

app.

• Record during shots: GoPro automatically records video whenever a Smart Shot is active.

To exit the camera settings, tap “Done” or anywhere to the left of the settings area.
44

6.2 Smart Shots

Solo’s Smart Shots automate video capturing to make it easy to get stunning aerial video. By default, Cable Cam 

and Orbit are assigned to the controller’s A and B buttons. Use the app to access Selfie or Follow. Smart Shots are 

available only with the Solo app.

Tip: When using Smart Shots without a Solo Gimbal, Solo cannot ensure that the subject is in the frame at 

all times. If this is the case, you can improve the chances of keeping the subject in the frame by adjusting the 

camera mount so the camera is fixed at an appropriate angle.

To access the shot list, tap the Shot List button ( ) on the main App screen:

Figure 6.1: App - Main Screen

Then, on the next screen, tap the icon for the Smart Shot you want to use:

Figure 6.2: App - Shot List

Tip: To see directions for a Smart Shot, tap its icon while Solo is on the ground.
45

6.3 Selfie

In Selfie, Solo flies a smooth up-and-back path to capture a subject in a cinematic establishing shot. Before starting 

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

Selfie mode, Solo flies up and away from the subject to a point 164 feet (50 m) from the subject at 82 feet (25 m) 

altitude. You can change these default distances with Selfie Options.

Figure 6.3.1: Selfie Path and Settings

1 Distance away (default 164 ft.)

2 Altitude up (default 82 ft.)

3 Flight path

6.3.1 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 prompts you to position Solo so the camera is facing you and to ensure that the path it will 

follow (up and back) is clear. To continue, tap this screen.

Figure 6.3.1.1: App - Selfie Activation

6.3.2 Selfie Operation

To move Solo along the Selfie path, tap the forward and back arrows in the App, labeled “Fly out” and “Return,” 

respectively. The default cruise speed when using Selfie is 9 mph (4 m/s). 

2

1

3

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

above Solo before starting Selfie. Press To stop Solo at any time, 

press Pause. To switch to manual control at any point, press Fly.
46

Figure 6.3.2.1: App - Selfie Control

To control Selfie using the controller, use the right stick to move Solo forward and back along the Selfie path. To 

stop Solo at any time, press Pause. To exit to standard flight, press Fly.

Figure 6.3.2.2: Controller -

Move along 

flight path

 Selfie Control

6.3.3 Settings

To access the settings from the in-flight Selfie interface, select Options with the three dots at the bottom-left of the 

main screen. To adjust Distance Away, Altitude Up, and Cruise Speed, use the sliders.

Figure 6.3.3.1: App - Selfie Settings
47

6.4 Cable Cam

Cable Cam creates a smooth shot by flying Solo along a virtual cable between any two points that you specify 

initially.

6.4.1 Starting Cable Cam

To start Cable Cam, press A on the controller, or select Cable Cam from the Shot List in the App. You’re then 

prompted to fly Solo to your first point and save it as the first Cable Cam point by pressing A. Then fly to your 

second point and save it by pressing B. For an impressive cinematic effect, try varying the altitude or orientation 

between the two points. Also, if you have the Solo 3-Axis Gimbal, try changing the view angle between the 

endpoints.

Note: The Cable Cam endpoints must be at different locations. If you try to set a second endpoint at the same 

position as the first, the new endpoint overwrites point A and you’re prompted again for a second point.

Figure 6.4.1.1: App - Cable Cam Setup

6.4.2 Cable Cam Operation

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).

Figure 6.4.2.1: App - Cable Cam Controls

To operate Cable Cam using the controller, move the right stick to the left to fly towards point A and to the right to 

fly towards point B. To pause at the current location, release the right stick. To look left and right, disable Automatic 

Point Camera (see Cable Cam Settings, following) and use the left stick. This overrides the camera temporarily. To 

stop Solo at any time, press Pause. To exit to standard flight, press Fly. 

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

starting Cable Cam.
48

Figure 6.4.2.2: Controller - Cab

Camera Cable

le Cam Controls

6.4.3 Cable Cam Settings

To access the settings from the in-flight Cable Cam interface, select Options with the three dots at the bottom-left of 

the main screen. To adjust Cruise Speed, use the slider. Automatic Point Camera prevents left-stick camera control 

during Cable Cam. If you set different Yaw values while setting up the shot, change the direction Solo rotates 

between the A and B points by toggling Reverse Yaw Along Cable. 

Figure 6.4.3.1: App - Cable Cam Settings

6.5 Orbit

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

Note: Orbit uses the Solo App’s mapping feature. For best results, use Orbit with a mobile device that has a live 

mobile data link. Alternatively, if using an Android device, you can use a cached map. For details, see Section 6.1.2, 

Map View, on page 39.

6.5.1 Starting Orbit

Select Orbit from the Shot List. The App switches to the map screen and shows the location Solo as well as the 

direction it’s facing on the map. This screen also shows the orbit center point as a small bullseye, as well as a line 

connecting the two points. To change the location of the center point, drag the map image in the App until the 

desired center point is at its center. 

When the setup is satisfactory, press A on the controller to save the current center point. Once you set the center 

point, the App displays a Orbit Center Point Saved confirmation. To adjust the position of the center point during 

Orbit, drag the map.

Figure 6.5.1.1: App - Orbit Setup
49

6.5.2 Orbit Operation

To fly Solo along the Orbit path, tap the left and right arrows at the bottom of the app screen, labeled Orbit Left and 

Orbit Right. The default cruise speed for Orbit is 2.2 mph (1 m/s).

Figure 6.5.2.1: App - Orbit Controls

To control Orbit using the controller, move the right stick left and right to fly Solo along the Orbit path. You can 

move Solo toward and away from the subject by pushing the right stick up and down, respectively. 

To temporarily override the camera’s lock on the subject and look left and right, move the left stick.To adjust Solo’s 

altitude, move the left stick up and down. If you have the Solo Gimbal installed, you can change the pitch of the 

camera with the paddle on top of the controller. To stop Solo at any time, press Pause. To exit standard flight, press 

Fly.

Orbit

Altitude Adjust radius

Camera

Subject altitude

Figure 6.5.2.2: Orbit Controls

6.5.3 Orbit Settings

To access the settings from the in-flight Orbit interface, select Options with the three dots at the bottom-left of the 

main screen. To adjust Cruise Speed, use the slider.

Figure 6.5.3.1: App - Orbit Settings

Solo orbits at a constant altitude relative to its launch point, and does 

not account for changes in ground level. Be aware of any elevation 

changes at your location that would affect Solo. Before starting Orbit, 

always ensure there is a clear path for Solo.
50

6.6 Follow

Follow creates a virtual tether between Solo and your GPS-enabled mobile device, allowing Solo to track you as you 

move. Follow has two modes:

• Look At Me: Solo remains in one place while turning to face the subject.

• Follow: Solo moves at the same rate as the subject while continually aiming the camera at the subject. In 

this mode you have the additional option of orbiting manually around the subject.

Note: To use Follow, your mobile device must have GPS capability. Most smart phones have GPS built in, but some 

tablets, such as the iPad, do not.

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

safety pilot during Follow. The subject carries the mobile device and is followed by Solo, and the safety pilot holds 

the controller and is ready to regain manual control at any time. 

Don’t allow more than 500 feet of distance between the controller and the mobile device; however, specific range 

limits depend on the device being used. If too much distance is allowed between the controller and the mobile 

device, the device could lose connection with the controller.

6.6.1 Follow Se

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

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

following the subject. 

tup

To start Follow, select Follow from the Shot List in the app and navigate Solo to face the subject. When Follow 

starts, it’s in Look At Me mode, in which Solo remains stationary while turning to face the subject as they move. To 

activate Follow mode, in which Solo moves along with the subject, tap Follow at the bottom of the screen. You can 

switch between the two modes at any time while using Follow. The App indicates the active mode with green text 

and icon.

Figure 6.6.1.1: Follow in Look At Me mode
51

Figure 6.6.1.2: Follow in Follow mode

6.6.2 Follow Mode Operation

When Follow mode is active, Solo automatically follows the mobile device wherever the subject carries it. In the 

App, the subject can orbit Solo around them by pressing the Orbit Left and Orbit Right arrows. 

On the controller, adjust the follow distance by moving the right stick vertically, and orbit the subject by moving 

the right stick horizontally. To adjust Solo’s altitude during Follow, move the left stick vertically. And to override the 

camera tracking and temporarily pan the camera, move the left stick horizontally. To stop Solo during Follow, press 

Pause on the controller; the camera continues to track the subject. To exit to standard flight, press Fly.

Figure 6.6.2.1: Follo

Orbit

Adjust following 

Altitude distance

Camera

w Controls
52

7 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.

7.1 Preflight Errors

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

Solo encounters an error during these preflight checks, the controller will display the encountered error along with 

instructions for the corresponding calibration to perform. 

7.1.1 Calibration

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

compass. Please wait for the error to clear before continuing.

Figure 7.1.1.1: 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 7.1.1.2: Controller - Uneven Surface Alert 

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

calibrations. Refer to Section 10.2 for compass- and level-calibration instructions.

Figure 7.1.1.3: Controller - Re-Calibration Required Alerts

PREARM SENSOR ERRORS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Altitude calibrating

Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor check)

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Compass error

Please calibrate compass using

the 3DR Solo app

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor check)

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Level error Please calibrate level 

using the 3DR Solo app

Sensor error screen

For sensor errors requiring user-initiated restart

Sensor error

Please try and restart Solo

Battery unknown

Displayed if Artoo is powered on with a battery has an 

ID resistor unknown to Artoo. (Not logged in current software version’s index.)

HAPTIC: Strong feedback, 40 millisecond pulse

After Solo is disconnected, Artoo should display “waiting for Solo”

Unknown battery

?

Control sticl error

Persists until:

Controller starts with stick values in range. 

Control stick error

Contact 3DR customer support

ARMING ALERTS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibration error Please restart Solo

Compass error

User is asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (system then continues sensor check)

User powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Calibrating compass Please wait

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor check)

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Uneven surface Move Solo to a level surface

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibrating Solo Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor check)

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Throttle too high

This flight mode requires low 

throttle before starting motors

Catch-All

Remaining rare but problematic APM errors

will be captured under a catch-all for

logging trouble tickets

Service required

Use 3DR Solo app to log a trouble 

ticket with customer support

ARMING ALERTS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibration error Please restart Solo

Compass error

User is asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (system then continues sensor 

User powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Calibrating compass Please wait

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor chec

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Uneven surface Move Solo to a level surface

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibrating Solo Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor che

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Throttle too high

This flight mode requires low 

throttle before starting motors

Catch-All

Remaining rare but problematic APM errors

will be captured under a catch-all for

logging trouble tickets

Service required

Use 3DR Solo app to log a trouble 

ticket with customer support

ARMING ALERTS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibration error Please restart Solo

Compass error

User is asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (system then continues sensor check)

User powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Calibrating compass Please wait

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor check)

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Uneven surface Move Solo to a level surface

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Calibrating Solo Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor check)

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Throttle too high

This flight mode requires low 

throttle before starting motors

Catch-All

Remaining rare but problematic APM errors

will be captured under a catch-all for

logging trouble tickets

Service required

Use 3DR Solo app to log a trouble 

ticket with customer support

PREARM SENSOR ERRORS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Altitude calibrating

Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor check)

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Compass error

Please calibrate compass using

the 3DR Solo app

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor check)

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Level error Please calibrate level 

using the 3DR Solo app

Sensor error screen

For sensor errors requiring user-initiated restart

Sensor error

PREARM SENSOR ERRORS

Altitude calibration

System self-calibrates altitude after altitude disparity

Alert persists until:

System self-calibrates (sys then continues sensor check) 

Timeout: after 1 minute (?) (results in “sensor error” screen)

Altitude calibrating

Please wait

Compass error

User asked to use Solo app to calibrate.

Alert persists until:

User completes calibration using the app (sys then continues sensor check)

Powers off controller, or Solo

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Compass error

Please calibrate compass using

the 3DR Solo app

Level error

User is asked to use Solo app to calibrate

Alert persists until:

User complete calibration using the app (sys then continues sensor check)

Powers off controller, or Solo 

Controller auto-shutdown

Note: Artoo will not assume the same error is present on 

restart, and will run a fresh check when connected to Solo.

Level error Please calibrate level 

using the 3DR Solo app

Sensor error screen

For sensor errors requiring user-initiated restart

Sensor error

Please try and restart Solo

Control sticl error

Persists until:

Controller starts with stick values in range. 

Control stick error
53

If a calibration or sensor error occurs during startup, one of the following alerts appears. To clear the error, restart 

Solo.

Figure 7.1.1.4: Con

Calibration error Please restart Solo

Sensor error

Please try and restart Solo

troller - Calibration Error Alert

7.1.2 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 7.1.2.1: Controller - Service Alerts

7.2 In-Flight Errors

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

level.

7.2.1 Altitude Limit

If Solo reaches the altitude limit during flight, maintains that altitude and the controller displays the following alert. 

Figure 7.2.1.1: Controller - Altitude Limit Alert

7.2.2 App Connection

We recommend maintaining an active connection to the Solo app at all times during flight. For information about 

connecting to Solo Wi-Fi with the App, refer to Section 2.6. If the connection to the App is lost during flight, Solo 

will not return home. If the Solo App connects to or disconnects from Solo during flight, the controller displays the 

following banner-type alerts:

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
54

Figure 7.2.2.1: Controller - App Conn

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY 12

3DR Solo app disconnected

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY 12

3DR Solo app connected

ection Alerts

7.2.3 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. To prevent signal 

interference, avoid flying in populated areas.

If the controller becomes unpaired from Solo during flight, the controller displays the following alert and Solo initates 

Return Home. See Section 10.3 for pairing instructions.

Figure 7.2.3.1: Controller - Controller Disconnected Alert

If the signal between Solo and the controller is lost during flight, the controller displays the “Controller signal lost” 

alert and Solo initiates Return Home. If signal is recovered while returning home, the controller displays the “Signal 

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

Figure 7.2.3.2: Controller - Controller Signal Alerts

7.2.4 GPS Signal Alerts

If Solo loses GPS during flight, it switches into Fly:Manual. If this happens, we recommend that you land Solo and 

wait to acquire GPS lock before taking off again.

In Fly:Manual, Solo uses the same joystick controls as in standard flight (displayed as “Fly”), but it does not use 

GPS positioning. Thus, Solo does not hold its position when you rlease the right stick, so you must maintain close 

control over roll, pitch, and yaw. Without GPS, Pause, Return Home, and Smart Shots are not available. During 

Land, Solo cannot maintain position due to the lack of GPS positioning, and drifts according to wind and other 

environmental conditions. If another alert occurs while Solo is in Fly:Manual, Solo cannot return home and instead 

initiates a non-positioned landing at the current location. 

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

Disconnected 12

Disconnected from Solo

Controller signal lost Solo will return home

Signal recovered
55

If Solo recovers GPS during flight, Solo switches from Fly:Manual to standard flight (Fly), and GPS positioning 

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

recovered” alert. For optimal GPS signal strength, always choose a location with a clear view of the sky.

Figure 7.2.4.1: Controller - GPS 

Cable Cam Orbit

324FT

84FT

HOME

48%

FLIGHT BATTERY

ALTITUDE

FLY:Manual 6

GPS lost

Switching to manual control

Signal Alerts

7.2.5 Flight Battery Alerts

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

25% and 15% power remaining, the controller displays a “Return home soon” alert recommending that you end 

your flight to prevent an automatic landing.

Figure 7.2.5.1: Controller - Low Battery Alerts

If the battery reaches 10%, Solo initiates Return Home to prevent a crash. After landing, turn off Solo immediately; if 

the battery level reaches 0% at any time, irreversible damage occurs and the battery should be recycled.

Figure 7.2.5.2: Controller - Critical Battery Alert

7.2.6 Controller Battery Alerts

When the controller battery level reaches 10%, the controller displays an alert to notify you to charge the controller 

at your next opportunity. At 5%, the controller prompts you to end your flight and charge the controller. If the 

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

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

Figure 7.2.6.1: Controller - Controller Battery Alerts

charge soon Low controller battery

Dismiss

land soon

Controller Battery at 5%

(If GPS Lock is present)

In-flight: At 0%, Solo returns to home location 

Returning home

Controller battery at 0%
56

8 Advanced Settings

This section provides instructions for accessing and using Solo’s advanced features and settings.

8.1 Advanced Flight Modes

Are you a quadcopter pro? We designed Solo to be simple and reliable, but also really fun to fly. Solo includes five 

advanced flight modes: Fly:Manual, Stabilize, Acro, Sport, and Drift. To access these modes, see sections 8.2 and 

8.3, following.

8.1.1 Fly:Manual

Fly:Manual mode is a version of standard flight without GPS lock. In Fly:Manual, the throttle stick controls altitude 

the same way as standard flight (Fly mode). However, because it does not use GPS positioning, when you 

release the right stick, Solo does not hold its position but instead drifts according to wind conditions and existing 

momentum. To control Solo’s position when flying in Fly:Manual mode, adjust the right stick continually and use the 

left stick to maintain Solo’s orientation. 

8.1.2 Stabilize

Stabilize mode provides full manual control without autopilot assistance. In Stabilize, the autopilot regulates Solo’s 

roll and pitch angles so that it automatically returns to level when you release the right stick. The throttle stick 

controls power and acceleration directly; it does not correspond to altitude. Stabilize requires fine control of both the 

left and right sticks to fly Solo. Stabilize does not require GPS lock.

8.1.3 Drift

Drift modes requires GPS lock and provides a plane-like flying experience. Drift is ideal for navigating Solo using 

the video feed. This is known as first-person view (FPV) and provides an immersive flying experience. In Drift, you 

control roll, pitch, and yaw with the controller’s right stick. To navigate Solo in Drift mode, move the right stick to 

initiate a coordinated turn in that direction. Releasing the right stick causes Solo to drift to a stop over a two-second 

period. Solo does not automatically control altitude in Drift, and thus requires continual adjustments to the throttle 

stick in this mode.

8.1.4 Acro

Acro is the most advanced of Solo’s flight modes. It provides unrestricted control over Solo’s roll and pitch angles. 

Acro is intended for performing aerial acrobatics, flips, and maneuvers requiring extreme angles. Acro provides no 

altitude or position assistance, so be prepared to make constant adjustment to both sticks. Acro is a copter-frameoriented mode, meaning that, in Acro, Solo always responds to controls relative to its own orientation. Acro does 

not require GPS lock.

8.1.5 Sport

Sport mode is a modified version of Acro that includes altitude assistance and earth-frame orientation. With altitude 

assistance, the throttle stick behaves the same in Sport mode as it does in standard flight (Fly mode). Earth-frame 

orientation differs from copter-frame orientation in that the direction of yaw rotation is in relation to the earth instead 

of in relation to the copter itself. For example, if Solo is pitched forward in sport mode and left yaw is applied, 

Solo will maintain the same pitch angle and rotate around the vertical axis. As opposed to in acro’s copter-frame 

orientation, in which, in the same situation, Solo will perform a cartwheel. Sport does not require GPS lock.

Advanced flight modes are for experienced operators only. Do 

not attempt to use these modes unless you are comfortable flying 

multicopters without positioning and altitude assistance. 

Do not fly in Acro mode unless you are an extremely experienced 

operator. Without the proper skills, crashes in Acro are highly likely.
57

8.2 Enabling Advanced Flight Modes

To unlock Solo’s advanced flight modes using the App, choose Settings from the home screen, then select 

Advanced Settings. Toggle the Enable Advanced Flight Modes option to gain access to Solo’s advanced modes.

Figure 8.2.1: App - Advanced Settings

8.3 Accessing Advanced Flight Modes

After you enable advanced flight modes, you can access them only by assigning them to the controller’s A and B 

buttons using the App. In the app, go to Settings > Solo and select Preset A or Preset B settings list. (The app must 

be connected to Solo to apply button assignments.) Once assigned, use the controller to activate advanced modes 

during flight.

Figure 8.3.1: App - A and B Presets

8.4 Home Position Safety

Fly:Manual, Stabilize, Acro, and Sport modes do not require GPS lock. To take off without GPS lock, Solo must be 

set to one of these modes. Without an active GPS signal, Return Home, Pause, and Smart Shots are disabled. If 

you take off without GPS lock, Solo does not save a home position at the launch point. If Solo acquires GPS lock 

mid-flight, the autopilot saves a home position at that location. To prevent a potentially unsafe situation, do not use 

Return Home if Solo did not acquire GPS prior to takeoff.

8.5 Performance Adjustment

The Solo app includes options to adjust Solo’s performance to suit your flying style. To access the performance 

sliders, go to Settings, choose Solo, and then select Performance. The Flight slider controls how fast Solo flies 

and its responsiveness to controls. The Camera Pan slider regulates the speed that Solo rotates. Move the slider 

If Solo did not acquire GPS lock prior to takeoff, do not use Return 

Home.
58

towards the turtle for slower, more cushioned movement, or move the slider towards the rabbit for faster, more 

responsive movement.

Figure 8.5.1: App - Performance Sliders

Tip: When using the Solo Gimbal, for best results set Performance to Medium.

8.6 Units

To change the units in the Solo App between imperial and Metric, go to Settings and then choose Units.

Figure 8.6.1: App - Change Units

8.7 Maximum Altitude Adjustment

To adjust the altitude limit, go to Settings, choose Solo, and then select Altitude Limits. Scroll the list horizontally to 

change the upper limit.

A No Limit option is available if you turn on Advanced Settings > Enable Advanced Flight Modes. If you opt for No 

Limit, ensure that you always operate Solo within your visual line of sight and in compliance with local regulations.

Figure 8.7.1: App - Altitude Limit

8.8 Map Tile Provider (Android only)

If your device supports mobile data (typically a cell phone), you can view a map of your surroundings by swiping left 

on the main screen in the Solo App. This setting lets you choose whether the map data comes from Google or Map 
59

Box. If you’re using mobile data, the choice is up to you, but if you’re using a Wi-Fi-only device, we recommend that 

you use Map Box in order to be able to cache map data. For more information, see section 6.1.2 on page 39.

9 Support

3DR Support is here to help you get the most out of Solo. If you have any questions, send an email to support@3dr.

com or give us a call at 1 (855) 982-2898 (toll free in the US and Canada) or direct at +1 (858) 225-1414. To submit a 

support request through our website, visit 3dr.com/support.

Use the Solo app to submit a trouble ticket; this automatically sends your flight logs be sent to 3DR Support. To 

submit a support request within the Solo app, select Support from the home screen, tap Contact Us, and select Log 

Trouble Ticket.

Figure 9.1: App - Submit Trouble Ticket
60

10 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 longer 

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

is powered off with the battery removed. 

10.1 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. For information on safely storing spare controller batteries, see Section 4.10.

Figure 10.1.1: Controller Battery Installation

10.2 Calibrations

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

propellers before performing calibrations. 

10.2.1 Compass Calibration

To calibrate Solo’s compass, connect the app to Solo Wi-Fi, go to Settings > Solo and select Compass Calibration. 

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 10.2.1.1: App - Compass Calibration Setup
61

The app prompts 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.

Figure 10.2.1.2: App - Compass Calibration Procedure

10.2.2 Level Calibration

A level calibration zeroes 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. Go to Settings Solo and choose Level Calibration from the 

list, 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 10.2.2.1: App - Level Calibration

10.3 Pairing the Controller

1. Turn off the Solo and the controller that you want to pair, along with any other Solos and controllers nearby.

2. Power on the Solo and controller that you want to pair.

3. Wait 30 seconds for Solo and the controller to fully boot up.

4. Identify the Pair button underneath Solo. It’s a small button inside the hole labeled Pair. You’ll need to use a 

paper clip, a small screwdriver, or another similar tool to push it.

Figure 10.3.1: Pair Button 

5. Press the Pair button underneath Solo and hold for one second.
62

6. When the controller detects Solo, it prompts you to accept the pairing request as seen in the screen below. 

(If the controller does not detect Solo after thirty seconds, try pressing the Pair button underneath Solo 

again and repeat as needed.)

Figure 10.3.2: Detected Solo

7. Press A, then B and hold both buttons down. Once the controller vibrates, release the buttons. Within 20 

seconds, the Controller displays “Solo Paired.”

Figure 10.3.3: Solo Paired

10.4 Legs

Solo uses three unique types of legs: two legs with an antenna module (#1 and #2), a leg with no electronic 

components (leg #3), and a leg with a compass module (leg #4). You can purchase replacements for all types of leg 

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

Figure 10.4.1: Leg T

1

Compass

Antenna

Antenna

Standard

ypes
63

10.4.1 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 10.4.1.1: Standard Leg Replacement Process

10.4.2 Legs #1 and #2 with Antennas

To replace a leg with an antenna module where the existing antenna is physically intact, 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).

Figure 10.4.2.1: Detaching the Anten

1

2

3

na from the Leg

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

using the provide screws (2).
64

Figure 10.4.2.2: Attaching a New Leg w

2

1

ith 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. Then remove the backing and attach the Velcro and antenna to the inside of the leg, placing 

the tip of the antenna five mm from the edge of the rubber foot (1) as shown in the following illustration. Fold the 

ends of a provided plastic sheet at right angles (2), remove the adhesive backing, and stick the plastic sheet to the 

leg so it secures the antenna in place (3).

Figure 10.4.2.3: Attaching an Existing Antenn

5 mm between 

antenna and foot

3

2 1

a to a New Leg

10.4.3 Leg #4 with Compass

Solo’s right-rear leg (#4) contains the compass module. Start by detaching 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. For battery tray removal instructions, see Section 10.5. 

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. Because the space between the arm and the connector is limited, it might 

help to use a screwdriver to press the tab.
65

Figure 10.4.3.1: 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 10.4.3.2: Insert New Leg with Compass

Secure the new leg in place and replace the battery tray.
66

10.5 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.

10.5.1 GPS Cover

The GPS cover is the flat, black end cap in front of the battery tray. To remove the GPS cover, use your fingernails 

(1) to release the side clips outward. Next, lift slightly while pushing forward (2) to pop the cover off completely.

Figure 10.5.1.1: GPS Cover Removal

10.5.2 Battery Tray Removal

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

seven screws securing the battery tray to Solo. 

Figure 10.5.2.1: Battery Tray Removal

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

board beneath. 

Figure 10.5.2.2: Battery Tray

GPS connector

 Detachment
67

10.6 Motor Mods

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. Replace motor pods 

after every 150 hours of flight or when they can no longer turn smoothly.

To replace a Motor Pod, first use a small, flat prying tool to remove the LED cover form the underside of the arm.

Figure 10.6.1: LED Cover Removal

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

Figure 10.6.2: 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 (DF13), 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 you use force to remove it.
68

Figure 10.6.3: Motor Pod Disconnection

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

into place. 

Figure 10.6.4: Motor Pod Connection

Turn over Solo and secure the new motor pod into place using the four provided screws. Do not reuse the screws 

from the old Motor Pod. Finally, snap the LED cover back into place.

Figure 10.6.5: Motor Pod and LED Cover Attachment

1

2
69

10.7 Factory Reset

Performing a factory reset restores Solo and the controller to their state prior to the first flight update. Use a factory 

reset if you forget your Solo Wi-Fi password or need to restore Solo’s factory settings.

Step 1: Reset the Vehicle

As part of the reset procedure, Solo is un-paired from the Controller. Start by powering off Solo. Use a paper

clip or similar tool to press and hold Solo’s Pair button while powering on Solo. (Make sure you feel the Pair button

click down underneath the paper clip to verify you have properly activated the Pair button.) Continue holding the

Pair button for at least 15 seconds.

Figure 10.7.1: Pair Button

Below the Accessory Port and adjacent to the Pair button is a small orange LED Pair indicator light. Once this light

starts flashing rapidly (strobing about five times per second), release the Pair button.

Figure 10.7.2: Strobing Pairing Light

Step 2: Reset the Controller

Start with the Controller powered off. Hold the Power and Fly buttons simultaneously until you see the controllerupdating display. The Controller then restarts, taking up to five minutes, and then the screen turns off for one 

minute.

Figure 10.7.3: Controller Reset 

Contact customer support before performing a Factory Reset. This 

procedure can cause irreparable damage to Solo. 
70

When the Controller reset is complete, you will see one of these two completion screens:

Figure 10.7.4: Controller Update 

As the vehicle reset nears completion, the lights under the arms change between many different colors, followed 

by a sequence of beeps. When the lights stop changing color, the reset is complete. Upon completion, the lights 

freeze on their current colors, so they might all be the same or different colors.

Step 3: Reboot Solo and the Controller

While rebooting, Solo emits its regular startup tones. The lights underneath Solo’s arms also light up green and 

change to white in the front and red in the back. If you do not hear and see these signals, then reboot Solo again. 

If the lights change colors now, then the vehicle is still resetting. Let Solo finish resetting and then reboot Solo 

again once the lights stop changing colors. 

After you reboot the controller, it displays the Preflight Update or Waiting for Solo screen.

Figure 10.7.2.5: Controller Screen After Reset

Step 4: Pair Solo and the Controller

For instructions on pairing Solo and the Controller, see section 10.3.

Step 5: Update your system

For instructions on updating your system, see section 2.6.4. The Factory Reset procedure is now complete. 
71

11 Appendix

11.1 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: ArduPilot 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

Extended 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 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.
72

11.2 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.

11.3 Regulatory Compliance

11.3.1 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. 
73

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.

11.3.2 Declaration of Conformity

3D Robotics declares that Solo & Solo Controller are in compliance with the essential requirements and other 

relevant provisions of Directive 1999/5/EC. The declaration of conformity can be obtained from help@3dr.com.

11.3.3 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.