(Android) Takeoff checks fail

The takeoff window displays a checklist that has to be validated before the drone can take off.

If an item of the checklist is not validated it can have 2 different status:

 Item is currently being checked

 Check failed

 

Item is currently being checked

The item is being verified. After some time, it will be validated or the check fails.

 

Check failed

Depending the item of the checklist, a failure can have different causes and different solutions:

 

Connected to drone

Cause 
The App is not connected to the drone through Wi-Fi.

Solutions
1. Check that the Wi-Fi connection is activated from the device.
2. Check that the range extender is turned on.
3. Restart the App and the drone if you don't find the problem.

S1 switch position correct / Switch is on "F"-position / Switch is on "P"-position

If using the Phantom 2 Vision+:

Cause
The S1 switch is not in the top position or there is not enough GPS signal.

Solutions
1. Check that the Drone GPS satellites check is validated. 
2. Flip S1 up and wait a few seconds.

If using the Phantom 3 Professional / Advanced and Inspire 1:

Cause
The P.A.F. switch is not on the correct position or there is not enough GPS signal.

Solutions
1. Check that the Drone GPS satellites check is validated.
2. Flip the P.A.F. switch to the F position and wait a few seconds.

If using the Phantom 4:

Cause
The P.S.A. switch is not in the P position.

Solutions
Flip the P.S.A. switch to the P position and wait a few seconds.

Drone close to grid

Cause
The drone is too far away from the grid (more than 250m).

Solution
Bring the drone close to the grid. It has to be maximum 250m away from the center of the grid.

Drone SD card

Cause
There is not enough space on the SD card. 

Solutions
1. Check that the SD card is not full.
2. If the SD card is not full, wait up to 1 minute until the status is refreshed.

Battery levels sufficient

Cause
The drone or range extender battery level is not sufficient.

Solutions
1. Verify that the drone's battery is charged (at least 20%).
2. Verify that the range extender's battery is charged (at least 20%).

Ground station connected

If using the Phantom 2 Vision+:

Cause
The App is not connected to the drone. 

Solution
Restart the drone and the device. Ensure that the device is connected to Internet when restarting it.

If using the Phantom 3 Advanced/Professional or the Inspire 1:

Cause

  • The App is not connected to the drone.
  • The drone is not flying. 
  • The drone firmware is not updated.

Solutions

  • Restart the drone and the device. Ensure that the device is connected to Internet when restarting it. 
  • Make the drone take off.
  • Update the drone firmware. 
Drone GPS satellites

Cause
The drone is connected to less than 6 GPS satellites.

Solutions

  • Wait a few seconds.
  • Try to restart the drone, the remote controller, and the app.
  • If possible, take off manually. The drone will detect more satellites if it is above the surrounding obstacles such as buildings.
Home point set

Cause
The drone is not connected to enough GPS satellites to retrieve its position.

Solution
Verify that the Drone GPS satellites check is validated.

Mission is within range

Cause
The drone's home point is not known or the home point is too far (more than 150m from the center of the grid) from the mission.

Solution
Take off manually to set the home point. Verify that your mission is not too far from the drone's current location.

Phone storage

Cause
There is not enough free storage on your device.

Solution
Free some space on your device.

Drone is flying

Cause
The drone is not flying.

Solution
1. Start the rotors.
2. Make the drone take off.

The drone doesn't have to be flying very high. 1 or 2 meters is enough.

Mission upload

Cause
The mission has not been uploaded to the drone or the mission was rejected by the drone.

Solution
1. Wait. There may be other takeoff items which must pass before the mission can upload, or it may take a while for a long mission to be generated and uploaded.
2. Make sure the connection with the drone is strong.
3. Restart your drone and start again.

Calibration

Cause
The drone requires calibration.

Solution
1. Launch DJI GO.
2. Follow the instructions to calibrate.
3. Relaunch Pix4Dcapture.

 

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