So i recently crashed my drone. approximately 30ft it fell. i broke the gimbal and camera so i bought a used one on ebay. while i was waiting on that i was able to fly it in manual mode. Once the gimbal arrived i installed it, plugged it in and installed the firmwire on the drone again. Now the drone will not fly at all, not even in manual mode. i keep getting a error messgae in the app that states that the controller signal is weak. can anyone please help. People keep sayin that i need to link the remote to the drone. well when i turn on the drone and the controller, the link button the the drone turns green while the button on the controller stays red. The only thing the controller does control is the camera.