IMU Basic calibration stalled half way through. Waited about 15 minutes then power cycled the phantom. Went back to Basic calibration it said “status idle” and nothing could be selected. So I tried the advanced calibration and waited 30 minutes and it stalled too. The controller started Beeping at 15 minutes and power led flashed until I turned it off. This unit is new so I updated the software/firmware first, then calibrated the controller sticks, and finally got stuck during IMU calibration. Suggestions appreciated.