I recently ordered a Gateway 3DS from PeachDS. It arrived fairly quickly but I keep getting "filesystem error" when I try to load any backups. I'm convinced the gateway card itself is defective so I'm sending it back and swapping it for one that works. Before I do this though, I'm wondering if there is anything I can do with this card before I return? Can I use it to install a CFW, then return it, or is my best bet just returning it and waiting for my new card? Edit:I have a FW 6.1.0 3DS XL.