i build my first copter tarot 650 with pixhawk. i did all pixhawk set up. first 2 flight was good but the last time when i tried to flight it was flighting very unbalanced. it started shaking and unfortunately it dropped down. i redo every setting for one more time but still very unbalanced flight and drops itself when it is in the air.
can someone help me what can be the reason?
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