Kingdom Hearts 358/2 Days Save Data Support

When I start playing Kingdom Hearts 358/2 Days (The ROM) on my SuperCard DS One, at a certain point in the game my save data corrupts. This has happened numerous times. Can some one help me with this problem?(Note: If anyone has a .sav file that works on SuperCard DS one for this game can you please post?)

Are you using any cheats on your game? That could be corrupting the save file.

No cheats whatsoever. I just play along, and then at a critical interval like 2 hours before game finishes, the data just decides to corrupt. Does playing on a prepatched rom make the data corrupt?

Try backing up all your files and reformat your MicroSD. It being patched wouldn't be the cause of this problem.

Reformat as in put the SD card into a computer and reformat? And I already made backup files. Whenever I load them however it always appears as the save I had just deleted.

Yes.