I just got a new Acekard 2i from dscartshop and I formatted the SD and put akaio on the root and put in my DS Phat to test it out and the DS can't read the acekard so im guessing its defective. Its not my DS though because my DSTT and all my other games work on the DS phat. The acekard fits in firmly so it can't be a contact issue and I tried blowing inside the DS and on the acekard.