I assume you have turned off all the options for auto update on the tablet and rolled back to the previous version?
In need to run with live video feed to check mine, I must be honest and say I have only run it on the bench at the moment, now I see what the problem is I can have a deep dive and see if I can stop it doing an auto update if I have to roll back to the earlier release for the time being.
I have a list of all the addresses we blocked on the MP1 to stop the drone talking back to DJI, I am sure some of those addresses must be used by DJI Fly, but its going to take some digging and testing to find the other addresses the app is talking to, and then block them on the M5 using something like “NoRoot Firewall” or “AFWall+”.