Friday we did get an DJI unlock procedure to work in restricted airspace (close to major airport. We were set to fly only 100 ft). It only took a couple of minutes to get. We were unable to fly because of wind so we went back the next day, same time and could not get a release to unlock. We did the exact same thing two different systems and got different results. One it said unlock successful, but no PIN number and would not let us fly. Anyone know any secrets.