Since the RC update, my P3 controller won't work with my P4.  I have an extender on my P3 which is why I care about this.  I'm getting a red disconnected in the upper left corner.  P3 RC works fine with the P3.  

Any assistance would be appreciated.  

Hi, try long pressing the Graduation Hat in DJI GO app for about 10 seconds and release, and flash an earlier firmware for your RC, see if it works

Did you try relinking RC to aircraft ?

Aardvark Posted at 2016-10-15 05:46
Did you try relinking RC to aircraft ?

That did it!  Thanks for the help.

Not sure why I didn't think of that....I guess because it was working fine two days prior....I've never had an RC become unlinked like that.  Not sure how / why it happened.  Just does, I guess.

Thanks again!