Thank you so much this worked, I can play my games now! Btw, I know this is over the top, but is it possible to edit my backup so I change change what the Ace3DS looks like (Change the name and icon of the cart.)
I used this as part of a Luma3DS installation. When the flasher prompted me, I dumped the card before flashing it. How do I get the ACE3DS back into the mode where I can play .nds games again?