I bought an oracle of ages some months ago and as I played it I discovered that it didn't save, so I think it was damaged because it wasn't new so I bought a new one and this time it saved but when I turn off and then on the game boy all files were erased. Tell me it is a problem with this game or my gameboy SP
game. The save files are stored on the cartridge, not the consoles, except in the cases of consoles which use memory cards. Just contact NIntndo and see if they will let you send in yours for a working one, they are usually good about that.