Hi Guys/Gals, I had just finished flying; Aircraft was working perfectly when I came in and updated to the 1.6 version for P3 Pro. Update seemed to go as it ought to and the subsequent readout result indicates 'success' with each battery. Figured I go back out to fly but now when I start aircraft it LOUDLY beeb..beep..beeps..... without stopping! I can connect to controller; all readouts appear normal and there no longer is any 'update required' message. However aircraft will not start and the beeping is incessant - much louder than any other sounds this or any of my other Phantoms ever have made. This happens with each of the batteries; all the same result. DJI probably won't be available until Monday and I had hoped to get some Christmas photos with the bird. Can anyone HELP, please? Merry Christmas and thank you for taking the time out to consider my difficulty.