Hi,

When connecting the pixhawk with the motors also in the circuit there is an arc of current at the connector (scary) and the motors beep then twitch to a beep every 1-2 seconds as the PIXHAWK powers up and continues to twitch and beep indefinately.

 Firmware, comp-cali, accel-cali, done was attempting to get into ESC calibration Mode.

Currently all the ESC's are hardwired, I was hoping to calibrate them all at once, or connect the control wires to calibrate them one at a time...

Now on the third attempt the pixhawk is fried, tried usb power up and the pixhawk is dead.  I need to know what to do differently before buying a new pixhawk.  I have HobbyWing FlyFun 40A OPTO esc's on an OCTO frame.

Any suggestions?