I took the SD card out of my Mavic Air 2. I stuck in in my smart controller and can see the images. I select all the videos/photos to transfer them to my computer or cell phone. The error I get is not transferred. What am I doing wrong? My computer is connected to Bluetooth with the Controller and that's unsuccessful. I then connect my controller to my iPhone via Bluetooth and the same results unsuccessful transferring video/pics? PLEASE HELP???