Hello my firends.. I got before some hours my new Phantom 4 and I was very happy. But now I'm speptical. I did the IMU calibration (by watching a video tutorial) with success. But compass calibration always fail. I tried inside house with no success, I tried in the roof (outside) with no success. Only one time when i went in a corner far away from walls I succeed compass calibration, but when I tried to fly, the phantom 4 didn't obey the orders of the controller (except throttle and landing). Left and right didn't working, so i land phantom 4 for safety. I watch the sreen of the ipad 3 (not mini) and saw again compass failed message. i dont know if i did something wrong and I m wondering how can I shoot (video) in an urban place if compass is sensitive and every time it gets failed, you dont have control of the phantom 4 ?