I neeeded to replave the controller for my P4. I synced it and it works fine.
My concern is the serial number seems to show up in the app as the same serial number from the old controller???? I'm concerened because I have a mapping job and need DJI to grant me an unlock which requires the S/N. I don't want to arrive on location and find out there is an issue.
I'm thinking that maybe the controller S/N is actually provided by the drone firmware since the numbers in the app never match the the number on the controller anyway.