Hi, I am using Inspire1 single remote. I upgraded my RC's firware by mistake via DJI GO app. Now I am unable to upgrade my AC as well as downgrade my RC. I have tried everything, but because my AC is not giving power to the gimbal so the gimbal stays dead even when I turn my AC on. Also I have tried pen drives and card readers to downgrade my RC but its not detecting the USB drives. Although it is showing the DJI GO app is connected to the RC as it is responding to few functions which are in the app. RC has green light which shows its connected to the AC but the small nobb which allows us to exit travel mode is also NOT working. Even in the app when I click on 'Exit Travel Mode' nothing is happening. I tried to format my SD card and USB drive multiple times but no luck. Please help if anyone has any clue. P.S. - I have been reading the forums all over the internet for more than 12 hours now, yes 12 hours. No solution at all.