A couple of months back my cousins two R4i 3DS flashcarts (Like the one on r4i-sdhc.com) for their DS lite, and DSi. Their problem is, when they put the cartridge into the game slot, the game icon does not show up on either of their DS systems. I'm sure the problem isn't a loose contact or anything of the sort, because the DS lite and DSi both read other game cartridges, as well as an older R4i Flashcard. Does anyone have a solution for such a problem? I suspect that they somehow managed to erase the boot files, or something off the internal memory of the flashcard itself... Is there any way to get the flashcards to work again?