New problem cropped up, I take off in GPS after get up and away then I get message "safe to fly non GPS and the bird will fly as if in atti mode. I had it hovering at 150 ft then get this and it suddenly drifts off at 20 mph strait toward a steep mountain, hit the stick to climb and the RTH before it slammed into the trees on the mtn, lucky the RTH activated just before it did and came back home to land.
I noticed this started after did the last IMU calibration.
I noticed this started after did the last IMU calibration.