I've been using my X5, bought new in June, with a Panasonic Lumix f1.7, 25mm lens and more recently also with an Olympus Zuiko f1.8 45mm lens. I have now started to get this 'vibration' on start-up and often when I use the gimbal. This can lead to 'Gimbal motor overload' which has now happened on two occasions. Here are a couple of videos of the problem. Dropbox - GOPR0869.MP4 Dropbox - GOPR0871.MP4 Anyone any ideas? I've tried calibrating the gimbal and IMUs but still have the problem.