I just got a used Inspire 1 Pro to add to my Inspire 1 fleet. There was no shipping damage and the components appeared in excellent condition. The DJI Go app shows that the craft has never flown - zero hours. When first trying to get out of travel mode to attach the camera, I got message saying that the landing gear was lowering (many times) but nothing happened. Eventually it did lower and I mounted the camera. Had my first flight today. I was able to lower the landing gear straight away, but it would not raise after take-off, either automatically or manually. There was a message that the gear was going up and down, but nothing happened. After landing and removing the camera, the Inspire will not go into travel mode. Is there something I can check?