Recently purchased a used PV330. It was crashed by previous owner. Upon purchase everything was functional. During my first flight I misjudged the distance of a tree. The drone took a short fall and cracked an arm, battery dislodged, and camera disconnected. I fixed the shell, got it flying again but could not get the camera tilt to respond. Camera still works and wires are all connected. Gears are not worn or stripped. Any suggestions?? A part number for tilt motor or proper name??