it works fine for a while then the game just freezes. actually it happened with several games. i installed the System V4.2c X (Europe/USA). what could it be? i formatted the micro sd with panasonic's thingy, fat32. what could be the prob? +edit. i can play the games for a while but then they just freeze,
I get this problem occasionally when I have cheatcodes activated. But I've only ever seen it once when I wasn't using cheats.
It could be the poor contact issue, M3 Real sometimes are not recognised by the DS, if this happens in agame it will freeze. Try putting a small piece of paper (folded over till receipt) between the M3 real and the back of the metal card slot. this tightens the M3 against the DS card slot pins.