Sorry if the answer or discussion on this is elsewhere, but I couldn't finy any discussions beyond March 2016. Part of our industrial property is located within a yellow-designated NFZ. I logged on to DJI and created an unlocking plan by providing a phone number for verification and the serial number of the controller for next Monday/Tuesday time frame. My question is...how the heck does DJI know that my controller will be inside that NFZ and allow takeoff, especially if my iPad is in Airplane Mode, as I have it most of the time while flying? Basically, I'm not getting the Black Magic that one would think has to happen for the engines to start. Thanks!