The Armes of the Inspire 1 stoped moving, but a humming sound from the motor remained. The problem is that the Gear of the servo motor comes lose.
Will update on how to repair.

Update: replaced the gear with a used gear of an old toy drone. I used a 1.45mm drill to fit the gear on the 1.5mm shaft. It works perfectly again.

Notice: when disassembling the DJI Inspire 1 to do the repair, it is only needed to tage of the front and top plastic part, then losen the 2 big screws holding the center part frame together and then the servo will come lose.

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