The Zombie Stack Exchanges That Just Won't Die
The internal battery in Game Boy cartridges eventually depletes, which erases its temporary contents (the game progress saved in RAM). How can I backup and restore this game save (e.g., the original Pokémon) between battery replacements or as a precaution against the effects of time?
sean
There is an Arduino-based tutorial for reading the ROM and RAM from the GameBoy cartridge: http://www.insidegadgets.com/2011/03/28/gbcartread-arduino-based-gameboy-cart-reader-%E2%80%93-part-2-read-the-ram/
And for writing back to RAM: http://www.insidegadgets.com/2011/04/07/gbcartread-arduino-based-gameboy-cart-reader-%e2%80%93-part-3-write-to-ram
Or you can switch to playing the games in an emulator.