I had the same problem, only it occurred before take off. Everything else worked such as the gimbal movement (just didn't know where it was pointing), camera in video mode and snap shot mode, control of the drone, etc. I looked at other comments posted, but never found an answer other than a component on one of the boards is affected by heat and might not allow the board to operate normally. A few times when tested in the house without props it worked normally, but most of the time it didn't. I took about an hour to connect and talk to dji, but the rep could not fix it and told me to send it back. I did and it is being evaluated. Dji emailed me a UPS address ticket, I used the original box for packing the unit, had UPS put it into another box with padding and sent it back. UPS charged me about $4 to pack it and Dji paid for the shipping. I got an e-mail from them a few days later saying they received the P3S and were evaluating the problem. I am hoping that it is covered with their 6 mo. guarantee. They sent me an address and ID# where the evaluation will be available to view. So far it looks like good service. This problem goes back a couple of years and I'm surprised that there hasn't been a fix. Dji must know what is causing it by now.