I feel really stupid asking this question, but I am stuck! DJI Pilot App says I must activate my Inspire before the first flight. I can't figure out how to do this. I had to close everything down to do something else, but when I started the Pilot App again I could not find the screen to activate the bird. I've looked on most of the videos and searched the owners manual to no avail. Can anyone tell me where to start? Thanks.