hello, I was flying my p3 pro yesterday and all was good had full use of everything. today I fired it up and had vision from the camera but nothing else. I have tried everything but can not get any life out of the bird. DJI tech service was little to no help and I will not send it in to get raped. The bird will link but then will tell me lost connection to the RC but will still have vision on the app.....but no control over the gimball or the bird. I can not do an IMU calibration. I can not do anything. I have tried all even popped the hood to check. Removed the gimbal to see if any change and nothing. Removed the housing and circuit board where the linking button is and swapped with another from another pro and nothing.......everything is getting hot so need to calibrate but can't. Can't do anything with the firmware either. app says controller has 1.6 but that's all it tells me. tried many devices and tried deleting and reinstalling the app. Anyone got any brilliant ideas for me to try.