The first downgrade to 1.76, I used the 3.1.28APP to view the firmware information, and then uninstall, install 2.42 again, go out, there is a no-fly zone.
Then I upgraded the aircraft back to 1.96.
1.96->1.88
1.88->1.76+Debug
1.76->1.64
After that, with DJI GO2.42 、DJI Pilot1.10、 and Litchi、...