Hey guys, so let me start of by saying I am a little over my head and I apologize my stupidity. I've looked around to try to explain my issues and couldn't find anything so I've turned here for help. I have a DJI Phantom Vision plus. I purchased it used and it seemed to work without a problem. A few days after purchase I had a pretty nasty crash into a tree. Since the crash it's gone down hill. Right after the crash the copter would ascend without a problem but descending it got very shaky. I assumed some calibration needed done. I let it sit for a few days and now I can't get it to fly at all. Upon start up all 4 lights flash and beep red. Both the copter and controller are firmware up to date. What I believe to be the compass ( little grey box on one of the legs of the copter) gets very hot within a minute of the copter being turned on. If you have it disconnected then I don't get the red lights it get continuous flashing yellow and the software give me an error about abnormal compass data but that makes sense considering it's disconnected. If I plug the compass in the software loses connection and doesn't recognize it. Im assuming I need to replace the compass and go from there? Sorry for the novel but any and all help is appreciated. Thanks!