I have about 14 hours on my phantom v1.1.1. and had just completed an advance calibration of the IMU. Then I went to take it on a flight, everything seemed fine with the preflight check, got all of my green lights and it took off fine. about 1 minute into the flight it started flying erratically (in GPS mode), so I bought it in for landing and it did hit the ground quite hard, but not enough to break anything, it seemed. But now my status light indicator is not working and it won't fly at all. I plug and unplug to "re-boot" and still nothing.... any ideas?