So I'm experiencing an odd issue with my phantom 3. When I attempt to take off no fans spin and I receive a 'command time out' error on the ipad when trying to auto take off. Any ideas what could be causing this message? The unit also is displaying a 'safe to fly' message along with having acquired 7-8 satellites...everything looks good. I've reset the transmitter, installed a new battery, and everything is displaying as fine (no faults except for the standard 'gimble overloaded' message after updating to the latest bios update. Ideas?