has no effect on a P1any chance you are in or very near a no- fly zone?
Can you explain exactly how you do the compass calibration. I've seen many do it wrong. I have had only one calibration fail. It was because I changed the way I normally do it and held the bird close to my body. I normally hold it out at arms length. I forgot I had a 1/4 " magnetic chuck in my pocket. I did it again at arms length still having the magnet in my pocket and all went well. I have seen people do the second part of calibration...spin the phantom like a wagon wheel. Not correct. Nose down and spin on vertical axis is the proper way. I also just turn my whole body.When I calibrate the drone the first rotation goes fine and the light turns green. Yet when I do it vertically it flashes red. I unplugged the compass and plugged it back in with no effect. Any ideas?