good evening, I have a problem with my mavic 3 classic:
while he was in flight he was caught by a sudden sand storm, after bringing him back to the ground some sand got stuck in one of the joints of the gimbal with consequent errors of the gimbal being blocked... I tried using a blower to blow on the gimbal until remove the sand and unlock the drone, the problem is that from that moment on the gimbal seems to shake both in flight with the drone still and while recording.
I tried doing the IMU calibration, the stabilizer calibration and updating the drone but the problem doesn't seem to go away.
I leave you a video in which the drone is still in almost total absence of wind and the gimbal seems to be shaking, can you help me? A thousand thanks.

https://youtu.be/Mi6G80AGfMo

Have you done a Gimbal Calibration? Check the bands that hold the gimbal in place and see if those never came off.

Hi there. We're deeply sorry for the incident that happened to your unit. Kindly try to perform a gimbal calibration and then check if the issue persists. If you still experience issues after doing the calibration, I'm afraid that you may consider sending the unit in for a proper diagnosis. You may contact our support team to start up a ticket at https://www.dji.com/support . Thank you for your understanding.