The lights on the P4 have been blinking orange for over 20 minutes when I tapped the Link RC in the RC Conrol settings and activated the LED button on the P4.  How long does it take link up?

You might have to have an internet connection the first time you connect to the machine so it get registered.

Thanks Hummingbird,  How does that work?  I have tried iPad Mini 4 and iPhone 6+ and both are on my wifi.   I have tried everything...reformatted the SD card, used IOS to update, reformatted then used Win 10 and DJI Asst. 2.0,  the RC will not link to the aircraft.  Been on the phone 5X with support.  No can get the right solution.  I even downgraded to the last firmware and tried it that way then upgraded again.  No joy.  I am in to this thing for ten hours and have not flown yet.  Pretty vexing.  Back to my P3 4k for now.

Finally, I reformatted (exFat) the SD card (64gb) fired up Win 10 on my MBPro with Parallels.  Connected the P4 to the MBPro via USB cable and ran DJI Assistant 2 v 1.0.1 (Win 10) and reloaded ver .288 firmware to the P4.  Voila.  The RC was recognized and I flew my first flight this morning.  Beautiful aircraft and much steadier than my P3 4k.  

ChiefPilot Posted at 2016-3-17 20:04
Thanks Hummingbird,  How does that work?  I have tried iPad Mini 4 and iPhone 6+ and both are on my  ...

I saw this somewhere on the forum.  My P4 arrives in 3 days so I can then see what it takes.