New mini. DJI Fly app on iphoneSE does not show any kind of activation prompt. When I "Connect Aircraft" on the first screen, I see the mini picture and click that; video shows connecting the phone (which I'd already done). Go to "Camera View", click settings upper right, go to "Control" and bottom of page- "Connect to Aircraft".... I get "Linking Failed".

Tried the "manual" method of holding transmitter power button until it beeps and then holding drone power until it beeps. Nothing.

Use DJI Assistant to update the firmware and repeated above; still nothing.

Would be a nice day to fly.

Thanks for any suggestions.

Tried an iPhone 8 and it worked fine.  The SE was listed in the compatible list.  Hmmm