Had a real scare the other morning. While flying my Air 2S, the screen on my tablet went black, in spite of having a strong signal. I tried exiting out of DJI Fly and re-opening it. Still black. The map was showing in the lower corner, but was unresponsive. I had plenty of battery left. After a minute or so pondering my next move, I decided I had better hit the RTH button on the controller and hope for the best. Sure enough, it came back and made a perfect landing. Later that day, I tried a different phone for my screen. It is a dedicated phone for use with the drone, only, as the tablet is. This time, during a hyperflash, the screen just froze. The countdown ceased. I had no idea if it was still taking pictures to complete the hyperlapse (it was), but I was able to get the screen working again by exciting the app and opening it again. I will be SO glad when DJI issues the next update. The current one seems way buggier than the last.