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    Odd Whining/Buzzing Sound from Day Old Motor - Needs Replaced?

    Hey all! Bought my first multirotor yesterday, a Blade Nano QX. I'm having a lot of fun crashing it around my living room. After about a day (and probably upwards of 100 crashes, although at 18 grams the crashes are pretty uneventful), one of my motors is making a loud buzzing/humming noise...