Hello,
II updated the RC on my P4P+ first (stupid mistake) and then when I tried  to update the aircraft, it stuck at 99% (update with RC) or it install successfully (update with DJI Assistant) but it never connect RC with aircraft...I need to downgrade RC, but I don't know how, all videos or tutorials are only on P4P (without monitor...) any advices?
Thank you!

hi reset controller to factory then reconnect to wifi by swiping down from top (1 finger ) and it will compleate ..

wobbles Posted at 2017-6-26 10:46
hi reset controller to factory then reconnect to wifi by swiping down from top (1 finger ) and it will compleate ..

How to do factory on RC? I didnt't find anywhere...

Skori Posted at 2017-6-27 08:17
How to do factory on RC? I didnt't find anywhere...

it in the setting screen scroll down

Have you tried re-linking RC with Aircraft ?

wobbles Posted at 2017-6-27 09:29
it in the setting screen scroll down

I tried, but it didn't downgrade firmware...still V 1.2.O.0

You have to re-bind the controller to the ac after you update it. You dont need to downgrade. You just need to re-link the controller with the ac.