Hi all! Yesterday I passed all day in this website finding a way to edit a GBA repro cartridge savefile because I bought a used GBA SP and it come with some repro carts. First I followed this guide to import a custom savefile in my cartridge  But when click on save restore with the custom rom that i've downloaded in different websites, and tried to boot the game, my savefile was the same as before. I was suspicious that the problem was the cartridge or the save file, but