Hello, I have two 3DS's and one of them has this weird problem. It is not hacked at all, running 10.7. When I start it up with an SD card, it says that it is not a recognized SD card. I experimented a little, and tried over 3 SD cards and no success. When I turn on Write Protection, the 3DS says that it is write protected. I tried formatted SD cards and everything I could think of. Warranty is not an option because I have had it for long enough that it can't be sent.