Hi, I have a 3DS with Gateway 2.2 and I have a lot of 3DS retail cartridge but I don't know how to use my own save. I read about backup them with the option "backup save cartridge" in GW 2.2 menu and use header, but doesn't work with SRWUX that is a 512 save file. Can anyone explain with a tutorial how to use my save from my retail games ? Thanks