Recently i was bench testing my HexRotor during which i drained the Lipo battery. During the bench testing, when the 3S 6Ah nano tech lipo level reached at around 8 Volts (as shown on the mission planner via Xbee) the motor stopped. I dropped the throttle to zero and then again increased the throttle, the motor started moving again. After a while they again stopped. I plugged out the Lipo and stopped with the testing
The next time i plugged in my Lipo, motors (3 and sometimes more) started twitching and giving a continuous beep ( i think with an interval of 0.25 sec, but continuous). I calibrated the ESCs again. But when i try to arm and fly, only 5 out of 6 motors move and the remaining one (the first motor i.e right side on hexa X) starts giving the continuous beep. Any ideas what might be the problem?