Top row of propellers don’t spin
The helicopter fell from about 8 feet, now only the bottom propellers spin.
Please give any ideas what happened
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Rep: 921
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The shaft could've broken, making it spin freely.
If turning the upper blade still turns the ring-gear in the middle of the copter you need to check if the gearteeth is meshing with its corresponding motor
my 2 cents, hope it helps :)
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