I have a P2 / H3-3D, so far it's been great. I had one quite nasty crash a few months ago which damaged the gimbal, so sent it to Heliguy (authorised service center) and had it repaired. All was well until I tried to fly yesterday. Everything was fine through startup / warmup / GPS linking, but once in the air I noticed jerky camera movement and brought it down. Every subsequent startup, the H3-3D is constantly jerking around within the 'yaw' axis. When I pick up the phantom and manually rotate/yaw, the gimbal gets really excited and makes a fun grinding noise while the metal motor at the top (connected to the phantom body) spins wildly. I've uploaded some video of the symptoms at - grinding and motor spinning from 0'02"-0'06". As I mentioned, following the gimbal repair things seemed fine - on my last flight there was no problem. Then, yesterday, spontaneously, this started happening. Has anyone else experienced this issue?