Well, I took my drone back to Boulanger in France over a month ago. Today it appears that their supplier says that my drone needs a new IMU card and one of the legs repaired. For those of you who remember, my drone has never flown except for the first trial in Beginner mode. After that I upgraded the firmware and it has crashed ever since. Now they say that the damage (not instigated by anything I did) will cost 300€ and that I have to contact DJI France who can then look at the flight records in Holland to see what the problem was ....their drone faulty or me! Can the IMU become faulty after the firmware upgrade as that seems to have started all the Problems. Any ideas? Thanks.