Hi folks, looking for a bit of help. Phantom 2, not crashed. Was running perfectly until I attached it to the PC and started messing around with the software. I engaged IOC then disengaged it and tinkered with a few other things. Undertook a couple of advanced IMU calibrations. I cannot now calibrate the compass no matter how often I try. Doing it the proper way, horizontal turn to get green solid light and then vertical nose down. After that it will only flash intermittent yellow and then goes to intermittent green. I can power the props but at that point the front red lights flash with the two rear green lights. I'm convinced this is a software issue but I do not know how to resolve. Demagnetising also did not cure. I'm at my wits end with this thing. Any help appreciated..