Long time lurker here so thanks for all the helpful info out there. So I had a pretty rough crash yesterday. I won't go into details but let's just say I didn't check my surroundings as well as I should have. The shell damage wasn't as bad as I would have expected, but one of the arms is slightly bent and I don't want to risk flying so I am going to replace the shell. A couple other things though. Think I might have damaged the compass, as I cannot get it to calibrate after repeated tries in the same location where I typically calibrate it away from interference. Also getting abnormal compass reading. So I'm going to try replacing the landing gear and compass to see if that helps. My main concern is this noise that seems to be coming from the gimbal while it's just sitting there. I'll try to include a video. The sound is usually heard once when powering up but as you'll hear in the video, it keeps going for as long as it's powered up. Any ideas? P3A, by the way.