I recently needed to install the Windows 8 Developer Preview Build on my computer and made the mistake of using my 8gb flashcard (sdhc) as a USB stick. So i deleted everything after the install and I restored my backup of every file i had on my Acekard. But now when I put my Acekard into my 3DS (2.1-04u) and run it, it says missing file. Do I need to run the update on my DS again? I actually gave it away today to a friend... What do I need to do to make my 3DS work? Re-install the firmware?