OK, turned everything on today to go flying and the DJI Go app said a firmware update was required. I tap it, and it says RC firmware update required. I download and update the firmware and now it says RC Signal Lost I can see the camera image on the screen, and the RC shows full bars, but I have no control. Phantom 4 App version 2.7.1 (iPad mini, whatever OS that is, version 9.3.1) Aircraft Version 01.00.0288 RC Version 1.6.0 It never asked to upgrade the aircraft, just the RC. What can I do?????