quad not taking off

  1. N

    Help! My Quad doesn't takeoff

    My quad has flown twice till now but once I unplug power and re-power the quad it just acts up. I saw in the Blackbox that it just spools up Motor 1 and 4 (by the way I am only increasing throttle here and not giving any extra inputs) whereas Motor 2 and 3 just slow down or don't keep up with...
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