unusual behavior

  1. Skyler King III

    Gyrating up and down, up and down, why?

    I need to understand what happened today: (Phantom 4) Fully charged batteries. Did preflight. Usual place for take off DJI GO4. Said Inconsistent firmware. I updated. Switched off controller and aircraft (Phantom 4) Turned on a/.c and controller (Controller 1st) Calibrated IMU and Gimbal...