Hi! Recently, I tried to download a game and put it on my DSTT. However, after putting the file in my card, it forced me to change/update the firmware. So, I did. But then the card said there was a malfunction: more specifically, "error code -4". Now, my DS doesn't work, nor do the games on the DSTT card. I tried plugging the DS/card into my computer, but the icon doesn't even show up, as if the computer does not recognized the card. Does anyone have any ideas about how I fix this? I know its probably a firmware problem, but I'm not sure how I can get a better firmware for my DS/DSTT when my computer won't even recognize the card. Thanks for your help in advance!