Dji phantom 4 compass calibration July 8, 2019 16 32 64 128 Dji phantom 4 pro compass calibration Dji phantom 4 rtk compass calibration Phantom 4 pro compass calibration Dji phantom 4 pro gimbal calibration Dji phantom 4 pro sensor calibration Phantom 4 calibration Dji phantom 4 pro camera test
