I have a blade 450x with a AR7200bx in it, I have repaired it many times, checked and doubled checked setting on the gyro and the transmitter. I just about ready to take off light on the skids and the helicopter flips to the left and lands up side down on the blades. I don't know what the problem is. How can I check servos or the AR7200bx to make sure they are working correctly. PLEASE HELP
THANK YOU DANNY
THANK YOU DANNY