I cannot believe I am the only one having this issue that started last week, March 13. I had not installed any updates to RC, aircraft or devices, I went to launch my craft and it seems to think my P4 is suddenly a P3 and tries to force me to install the pre P4 app from the playstore, I can't even get into the Go4 app if the aircraft is powered on. I get the same message on every tablet or phone I try and use, the message says "Current DJI Device: phantom3 professional Use the DJI GO APP for this device." see attached photo. To be clear I have had this P4 for nearly a year, I fly many times a week and have NEVER been grounded by software before.