Just got my new Phantom 4 today and I am getting an invalid sd card error. Which is weird because I am using the sd card that came with the p4. I tried rebooting and restarting the app, removing and reinserting the sd card while the unit was off, formatting the sd card in the DJI GO app, updating my firmware, formatting the sd card with my PC and nothing seems to be working. Anyone else running into this issue? or have a fix? I bought it at an apple store and could return it but that is really not convenient since the apple store is over 100 miles each way Then I would be scared that the replacement one would have the same issue.