So I followed a guide to transfer CFW from original N3DS SD card to a fake Samsung 64gb pro from ebay(no idea it was fake till now). Every thing works but I cannot install CIAs using FBI, it gives me the Summary Invalid Argument error. Is it because the card is a fake? Or did I do something else wrong, which I dont think I did. Just want you guys to confirm before I buy an official SD card and try again. Thx.