I have a AK 2i and use a 4gb Sandisk that worked perfectly but now, all of a sudden, it freezes up in specific points in a few games like The World Ends With You. I played to the end in TWEWY but i wanted to replay it, and now it freezes in the beginning cut scene. Another game it freezes with is Shonen Jump ultimate all stars. I haven't tried other games yet but i have reformatted my sd card and used AKAOI.I also tried another download of TWEWY to make sure it wasn't the rom but it didn't change the freezing and it froze in the same spot. Any help would be appreciated.