Long ago I backed up the save from my retail Fire Emblem Awakening (EU) cartridge using the Gateway menu, and I still have the .sav I lost this cartridge, so I'm trying to use the .sav with a backup of a new FE:Awakening EU. Is it possible at all without the headers? Would installing it as a cia help? I tried copying the save renamed to 000400000009F100.sav on the SD card, but when I start the game I get an error saying the save data is corrupted. I think the save was made on my previous 3DS.