Hi

Was testing my P4 today with latest DJI Go 4 (4.0. for Andoid when the DJI terms and conditions popped up and I had to re-register my P4 before I could continue. Luckily I was not flying it at the time and just doing some tests in the garden holding the quad. Not sure why this happened but glad the P4 was not in the air at the time. When it popped up I did kill the app and restarty drone and controller but still had to re-activate and name the quad again etc as if it was a new purchace. I am hoping it may have been something I accidently did/pressed and not another issue that hes surfaced with the APP. Before I re-activated the P4 I also tried Go 3 which also stated I had to re-activate and Litchi which did run OK. I have now re-activated and renamed the drone and everithing seems to be back up and running.

Maybe it ties in to your other Post with latest Android OS.

I have since rolled back the K1 tablet back to Marshmallow 6.0.1 following the negative feedback regards Go and the Nougat update. This was done before the issue above happened.