Regarding erratic flights, no photos, missing photos with Phantom 4 Advanced, I had the same issue, I recalibrated the compass, still had the issue, recalibrated again, and the problem seems to be solved, Performed a mission and worked flawlessly. The DJI Go software indicated no issues with compass calibration either time,
Hi George,
thank you for sharing your positive experience ( :
Link to the main thread: Phantom 4 Advanced.
Best,