Cheerson cx 20 open source will not accelerate

I bought This quad a month ago and after hooking it up to mission planner and doing a manual compass calibration it was flying fine. I went on about 15 flights, high and low altitude. Today i decided to do the compass calibration again because the first time i didn't really know what i was doing. So i did the compass calibration and then did the radio transmitter calibration. It also wanted me to do a firmware update so i did, and found out that that was a mistake. the lights would blink and the beeping sound was constant when i would put in a battery and would not arm. So after that i backed up the firmware to what i believe was the one i began on. Beeping stopped, everything back to normal but now after arming there is very little acceleration, not even enough to move the quad let alone lift off, And that's at full throttle. I went back and tryed to do the radio transmitter calibration again but still no acceleration or lift off??? Any help would be appreciated

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  • Try redoing the firmware upgrade properly, this same problem happened to mine and I redone the firmware upgrade, just follow the steps on the mission planner, then don't forget to run the wizard :) after that, try arming your quadcopter and see if it fixed the issue.

  • your esc's are probably not calibrated, i go into mission planner, in the full list theres a setting that says esc calibrate and you can choose to enter calibration on the next reboot....so i set that, write parameter, disconnect, unhook battery, take props off, move throttle on transmistter to max but keep it off, hook up battery to copter and quickly turn on transmitter. mine will beeb a few extra times than it normally does, i then lower throttle to minimum. disarm, unplug quad, and turn of tx....turn everything back on and see if the motors spin up like they are supposed to, then mount props and see if it will fly

    i have nothing but trouble after updating firmware in my nova, a buddy told me to and i took his advise. now the thing cant do alt_hold or loiter as loiter depends on alt_hold to work...ohh yeah RTH doesnt work as it depends on loiter....so one thing messed up, affects lots of other things

    good luck

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