I have already done the downgrade to a n3ds and im going to go from this n3ds to another. the id that i bought legends of exidia on is still on this 3ds as well as the game. when i enter the game after replacing the public.sav (checked and replaced twice) i just get a black screen. even after deleting the game and redownloading it from the eshop its still just a black screen without overwriting the public.sav. can anyone help?