When downloading videos from the SD card in the Phantom3, it is a very slow process when done wirelessly and can't be done at all if recorded in 4K. The pop up windows says to connect using the micro USB cord for faster downloads and to download 4K content. How is this done exactly? If I connect the cord from the camera to the controller then the ipad can;t be connected and thus now transfer of content takes place. Confused and must be missing something. Thanks.