Yes sir. As I stated above I calibrated, my friend calibrated, I went to a lake in the middle of nowhere and calibrated. I may be new to the forum, but this isn't my first dji quad.Compass can disconnect for many reasons. One reason would be conflicting information between the two. This can be caused by a bad calibration, bad take off point, bad hardware, or bad firmware. No way to know without going through a process of elimination. I would strongly suggest recalibrating after studying the dos and don'ts of calibration on this site. And then chose a take off point that is not on a road surface or other area that could be locally magnetized.