- -3 Trigger and actuator are missing some parameters.
- -4 Timeout, the airlink/remote controller signal may be too weak, please take care of the environment.
- -5 Aircraft communication is broken.
- -4001 Aircraft is too far away to the first waypoint.
- -4002 Aircraft is too far away to the last waypoint.
- -5002 Aircraft is using GPS data and GPS Level is less or equal to 3.