Came into possession of a Phantom 3 4k recently. Had issues with camera gimbal and the IMU. Looks like the copter had a massive fall. Already going to have to replace the lower body (cracked at the screw points under the motors...stress fractures) Fixed the gimbal issue now the camera wont pan left or right. The The IMU was also fixed and calibrated...thanks Youtube! Other than the camera issue, it seems that i have no flight controls. What I mean is that the controller is connected to the unit. When I engaged power to the motors, theres nothing. Not even a flicker of power to the motors. It seems that there is no signal from the controller to the drone. Any ideas?