I have P3 pro with fw 1.1.9. The Ipad Mini 2 auto updated to 1.2.0.  After that, sometimes the app show "no signal"  in red  but with full control. I can change everything without seeing video feed. I've ask support to DJI and they said to upgrade fw to 1.2.8. So far I've tried to upgrade about ten times and always give me an error. I give up.

I'd like to return to the previous app version. I think it is 1.1.2 but i don,t know how to do it.  I'm not used in Apple system. Can anybody help me ?

There is no way unless you can find the old version files then jailbreak the phone to install them.

venomx15301 Posted at 2015-8-1 19:58
There is no way unless you can find the old version files then jailbreak the phone to install them.

Thank's for your help. I´ve  the previous version but jailbreak (I think I lose warranty of the IPAD) is the only way ?

As far as I know that is the only way and yes Apple says jail breaking voids the warranty.