jerking

After one crash I have problems with my phantom 3 standard. It do not hold altitude and whole body of phantom is jerking. Compass was calibrated and IMU too. All flight was in p-gps mode. Does anyone have solution for this problem? Video link:

Hi all, new to this. Just got my first drone in the mail: a Phantom 4. Immediately when I set it up I noticed the gimbal was twitching/jerking back and forth left to right, and I was getting a message about gimbal motor overload. I have tried the following so far: I checked the gimbal very...