I've had this cart for the longest time now, and I've barely touched it. I finally decided to start playing it and now it shows a message on the bottom screen saying "An Error has occurred. Hold down the power button to turn off the power then turn it on and try it again. For help please visit support.nintendo.com" I've tried doing this multiple times and it hasn't done anything yet and it's only this cart that has this problem. All my other carts work fine. I'm on the latest system version with no CFW, although I have streetpassed many times with my other 3ds which does, and it shows the homebrew launcher as the app in his hands. I think it might be a cartridge fault although I'm not sure.