I purchased a used Phantom 3 Standard from a friend who had crashed the drone with the only damage being a bent yaw arm. When I picked up the drone we test flew it using his phone. The drone flew fine, the camera picture was fine just tilted due to the arm damage. Yesterday I removed the gimbal and replaced the yaw arm, reinstalled everything and went to take it for a test flight. Downloaded DJI's App and tried to connect everything with no luck what so ever. I have a red light on the controller, a red solid light on the drone link button and the Status LEDs are blinking fast yellow. The App shows No Signal at the top and there is no camera view. I spent a good hour on the phone with DJI, I have tried to link it per the instructions more times than I can count. When I try to link the RC connection the link button never blinks red and so it will not connect. Also when pressing the link button there does not seem to be a solid depression or click like you would expect from a button, not sure if that is normal or the link button is broken. At any rate, wondering if any of you have experienced this and what the fix was? Is the drone somhow still linked to his phone causing the problem or is there some other way to try and link these that is not in the manual? Don't really want to send this back to DJI and have to deal with this through them, the poor support on the phone today was enough for me with them.