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FlightControl - Request to take off failed, error code: 0x000000C7
342 3 2-13 00:24
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djiuser_tsM0hZLAmNo4
lvl.1
Czechia
Offline

Hello,
I am running the Payload sample C++ program with drone M300 using E-Port. All flying actions return some unknown error code, for example:
```
[25.371][user]-[Error]-[DjiTest_FlightControlMonitoredTakeoff:1207) Request to take off failed, error code: 0x000000C7

```
Other functionality that I tried (gimbal, camera) works.
The drone is connected to DJI Assistant 2, so the flying is simulated.
Firmware version: newest - V10.01.0801.
Psdk version: newest - tag 3.10.0


Here is a full log:
```
pisl@obu1:bin$ sudo ./dji_sdk_demo_linux_cxx
'Logs/latest.log' -> 'DJI_0010_20250213_07-34-38.log'
[0.031][core]-[Info]-[DjiCore_Init:107) Payload SDK Version : V3.10.0-beta.0-build.2190 Jan  9 2025 21:52:37
[3.191][utils]-[Info]-[DjiSdkVersionAck_Parse:183) Identify aircraft serial number = 1ZNDHAN00CVWE9, Firmware = 3.4.18.68
[3.194][adapter]-[Info]-[DjiAccessAdapter_Init:314) Identify aircraft series is Matrice 300 Series
[3.194][adapter]-[Info]-[DjiAccessAdapter_Init:353) Identify mount position type is Extension Port Type
[3.212][adapter]-[Info]-[DjiAccessAdapter_Init:475) Identity uart0 baudrate is 460800 bps
[3.212][adapter]-[Info]-[DjiPayloadNegotiate_Init:134) No need negotiate device info
[4.402][core]-[Info]-[DjiIdentityVerify_UpdatePolicy:493) Updating dji sdk policy file...
[5.402][core]-[Info]-[DjiIdentityVerify_UpdatePolicy:501) Update dji sdk policy file successfully
[5.409][core]-[Info]-[DjiCore_Init:169) Identify AircraftType = Matrice 300 RTK, MountPosition = Extension Port, SdkAdapterType = None
[5.467][core]-[Info]-[DjiCore_SetAlias:186) Set alias: PSDK_APPALIAS
[5.467][gimbal]-[Error]-[DjiGimbal_Init:205) Can't support this function
[5.467][user]-[Error]-[DjiTest_GimbalStartService:154) init gimbal module error: 0x000000E0
[5.467][user]-[Error]-[DjiUser_ApplicationStart:316) psdk gimbal init error
[5.974][user]-[Info]-[SetVolume:581) Set widget speaker volume: 60
[5.974][user]-[Warn]-[SetVolume:599) No audio device found, please add audio device and init speaker volume here!!!
[10.976][core]-[Info]-[DjiCore_ApplicationStart:247) Start dji sdk application
[10.976][user]-[Info]-[DjiUser_ApplicationStart:363) Application start.

| Available commands:                                                                              |
| [0] Fc subscribe sample - subscribe quaternion and gps data                                      |
| [1] Flight controller sample - you can control flying by PSDK                                    |
| [2] Hms info manager sample - get health manger system info by language                          |
| [a] Gimbal manager sample - you can control gimbal by PSDK                                       |
| [c] Camera stream view sample - display the camera video stream                                  |
| [d] Stereo vision view sample - display the stereo image                                         |
| [e] Run camera manager sample - you can test camera's functions interactively                    |
| [f] Start rtk positioning sample - you can receive rtk rtcm data when rtk signal is ok           |

1

| Available commands:                                                                                            |
| [0] Flight controller sample - control flying with keyboard                                                    |
| [1] Flight controller sample - take off landing                                                                |
| [2] Flight controller sample - take off position ctrl landing                                                  |
| [3] Flight controller sample - take off go home force landing                                                  |
| [4] Flight controller sample - take off velocity ctrl landing                                                  |
| [5] Flight controller sample - arrest flying                                                                   |
| [6] Flight controller sample - set get parameters                                                              |
| [7] Waypoint 2.0 sample - run airline mission by settings (only support on M300 RTK)                           |
| [8] Waypoint 3.0 sample - run airline mission by kmz file (not support on M300 RTK)                            |
| [9] Interest point sample - run interest point mission by settings (only support on M3E/M3T)                   |
| [a] EU-C6 FTS trigger sample - receive fts callback to trigger parachute function (only support on M3D/M3DT)   |

2
[24.332][flight]-[Warn]-[DjiFlightController_RegJoystickCtrlAuthorityEventCallback:698) Not support on this aircraft type.
[24.332][user]-[Info]-[DjiTest_FlightControlPositionControlSample:307) Flight control move-by-position sample start
[24.332][user]-[Info]-[DjiTest_FlightControlPositionControlSample:310) --> Step 1: Obtain joystick control authority.
[25.352][user]-[Info]-[DjiTest_FlightControlPositionControlSample:319) --> Step 2: Take off

[25.371][errno]-[Error]-[DjiError_GetErrorMsgElements:85) Search error object failed.
[25.371][errno]-[Error]-[DjiError_GetErrorMsgElements:102) Print error message failed, error code is 0x1D000000C7.
[25.371][flight]-[Error]-[DjiFlightController_Action_M300:267) (null)(null)(null)
[25.371][user]-[Error]-[DjiTest_FlightControlMonitoredTakeoff:1207) Request to take off failed, error code: 0x000000C7
[25.371][user]-[Error]-[DjiTest_FlightControlPositionControlSample:322) Take off failed
[25.371][user]-[Info]-[DjiTest_FlightControlPositionControlSample:368) Flight control move-by-position sample end

| Available commands:                                                                                            |
| [0] Flight controller sample - control flying with keyboard                                                    |
| [1] Flight controller sample - take off landing                                                                |
| [2] Flight controller sample - take off position ctrl landing                                                  |
| [3] Flight controller sample - take off go home force landing                                                  |
| [4] Flight controller sample - take off velocity ctrl landing                                                  |
| [5] Flight controller sample - arrest flying                                                                   |
| [6] Flight controller sample - set get parameters                                                              |
| [7] Waypoint 2.0 sample - run airline mission by settings (only support on M300 RTK)                           |
| [8] Waypoint 3.0 sample - run airline mission by kmz file (not support on M300 RTK)                            |
| [9] Interest point sample - run interest point mission by settings (only support on M3E/M3T)                   |
| [a] EU-C6 FTS trigger sample - receive fts callback to trigger parachute function (only support on M3D/M3DT)   |

3
[36.211][flight]-[Warn]-[DjiFlightController_RegJoystickCtrlAuthorityEventCallback:698) Not support on this aircraft type.
[36.211][user]-[Info]-[DjiTest_FlightControlGoHomeForceLandingSample:376) Flight control go-home-force-landing sample start
[36.211][user]-[Info]-[DjiTest_FlightControlGoHomeForceLandingSample:379) --> Step 1: Obtain joystick control authority
[37.231][user]-[Info]-[DjiTest_FlightControlGoHomeForceLandingSample:388) --> Step 2: Take off

[37.251][errno]-[Error]-[DjiError_GetErrorMsgElements:85) Search error object failed.
[37.251][errno]-[Error]-[DjiError_GetErrorMsgElements:102) Print error message failed, error code is 0x1D000000C7.
[37.251][flight]-[Error]-[DjiFlightController_Action_M300:267) (null)(null)(null)
[37.251][user]-[Error]-[DjiTest_FlightControlMonitoredTakeoff:1207) Request to take off failed, error code: 0x000000C7
[37.251][user]-[Error]-[DjiTest_FlightControlGoHomeForceLandingSample:391) Take off failed
[37.251][user]-[Info]-[DjiTest_FlightControlGoHomeForceLandingSample:462) Flight control go-home-force-landing sample end

| Available commands:                                                                                            |
| [0] Flight controller sample - control flying with keyboard                                                    |
| [1] Flight controller sample - take off landing                                                                |
| [2] Flight controller sample - take off position ctrl landing                                                  |
| [3] Flight controller sample - take off go home force landing                                                  |
| [4] Flight controller sample - take off velocity ctrl landing                                                  |
| [5] Flight controller sample - arrest flying                                                                   |
| [6] Flight controller sample - set get parameters                                                              |
| [7] Waypoint 2.0 sample - run airline mission by settings (only support on M300 RTK)                           |
| [8] Waypoint 3.0 sample - run airline mission by kmz file (not support on M300 RTK)                            |
| [9] Interest point sample - run interest point mission by settings (only support on M3E/M3T)                   |
| [a] EU-C6 FTS trigger sample - receive fts callback to trigger parachute function (only support on M3D/M3DT)   |

4
[42.151][sub]-[Warn]-[DjiDataSubscriptionDb2p_SubscribeSpecialTopic:185) Special handler for data subscription is full.
[42.151][user]-[Warn]-[DjiTest_FlightControlInit:191) Subscribe topic quaternion duplicate
[42.390][flight]-[Warn]-[DjiFlightController_RegJoystickCtrlAuthorityEventCallback:698) Not support on this aircraft type.
[42.390][user]-[Info]-[DjiTest_FlightControlVelocityControlSample:470) Flight control move-by-velocity sample start
[42.390][user]-[Info]-[DjiTest_FlightControlVelocityControlSample:473) --> Step 1: Obtain joystick control authority
[43.411][user]-[Info]-[DjiTest_FlightControlVelocityControlSample:482) --> Step 2: Take off

[43.432][errno]-[Error]-[DjiError_GetErrorMsgElements:85) Search error object failed.
[43.432][errno]-[Error]-[DjiError_GetErrorMsgElements:102) Print error message failed, error code is 0x1D000000C7.
[43.432][flight]-[Error]-[DjiFlightController_Action_M300:267) (null)(null)(null)
[43.432][user]-[Error]-[DjiTest_FlightControlMonitoredTakeoff:1207) Request to take off failed, error code: 0x000000C7
[43.432][user]-[Error]-[DjiTest_FlightControlVelocityControlSample:485) Take off failed
[43.432][user]-[Info]-[DjiTest_FlightControlVelocityControlSample:589) Flight control move-by-velocity sample end

| Available commands:                                                                                            |
| [0] Flight controller sample - control flying with keyboard                                                    |
| [1] Flight controller sample - take off landing                                                                |
| [2] Flight controller sample - take off position ctrl landing                                                  |
| [3] Flight controller sample - take off go home force landing                                                  |
| [4] Flight controller sample - take off velocity ctrl landing                                                  |
| [5] Flight controller sample - arrest flying                                                                   |
| [6] Flight controller sample - set get parameters                                                              |
| [7] Waypoint 2.0 sample - run airline mission by settings (only support on M300 RTK)                           |
| [8] Waypoint 3.0 sample - run airline mission by kmz file (not support on M300 RTK)                            |
| [9] Interest point sample - run interest point mission by settings (only support on M3E/M3T)                   |
| [a] EU-C6 FTS trigger sample - receive fts callback to trigger parachute function (only support on M3D/M3DT)   |

```

Is there anything I can do to fix this error? Thank you.
2-13 00:24
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DJI Wanda
Administrator
Offline

Hi, there
Thanks for bringing this to our attention.
Could you please provide the screenshot or take a video showing the issue?
We will forward it to the relevant team and check it out for you.
Thanks for your understanding.
2-13 02:13
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djiuser_tsM0hZLAmNo4
lvl.1
Czechia
Offline

Hello,
thank you for fast reply. A screenshot is here:

2-13 03:43
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djiuser_tsM0hZLAmNo4
lvl.1
Czechia
Offline

Hello, I have an update. There is a physical lock on the batteries of the drone. It was not locked, i.e. it was in vertical position. After locking it i.e. turning it to horizontal position the previous error no longer happens.
2-13 06:17
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