i just got my new kk 5.5 blackboard and flashed it with x copter firmware for my quad
now when i power it up and arm it, only one motor spins and that too at max throttle
i experienced this with my previous multiwii board too
the board is compensating for any shakes or when i tilt the copter
everything is working fine and i have callibrated all escs..
any idea why this is happening??