I've had a few problems today and yesterday regarding my 3ds. First I keep getting error code 007-2999, I kept doing what was suggested when I looked up the error code with no sucess. I then got a bit fed up, restarded routers, changed SD card and nothing changed. When I tried putting in back my the first SD card, the 3DS acted weird, I can see my software and data in Memory Management, but I couldn't see a single game in the main screen. I have backups of the memory in my hard drive, and formatted the SD card, which helped a bit since I can acess the eshop now, but now none of my games are showing up.
I have no idea what to do or what's causing any of my problems.