I crashed my Holystone HS175D pretty hard (25 foot drop +/-) but it seemed to fly normally after that. Now the drone turns on and beeps when I move the case or take the drone out. It cycles on and off until it sits still for a bit. Haven't flown it since this showed up, figuring that cycling on and off is somewhat inconsistent with happy flight. Any ideas? I already know the one about knowing how to fly better.