Hi! I had a flyaway flight, then the Phantom 2 Vision return to home point but it fall when it was about 10 meters. Now, when I turn on the battery the lights blink once yellow and the drone sound is beep beep beep beep forever. I searched everywhere and didn't discover the problem. I opened the Phantom but there was not a broken or disconected parts. The cam conector was broken. The assistant software didn't recognized the drone.
I haven't had that happen - but my suggestion is: 1. Make certain your gimbal is all properly disconnected (you mentioned it's broken, so unplug everything). 2. Recalibrate the compass.. I think it's the gimbal wiring putting a bad signal into the NAZA.
I did the test with everything unplugged. I can't calibrate the compass, the drone don't reply the commands. Well, thank you for your attention. I sent to technical support yesterday.