Zip, zap and away! Just solder in a holder and…. well mine didn’t have enough clearance, but maybe yours does! Good to bring the save game section of your cartridge back to life. Let’s face it, your old saves weren’t that good anyway. Do better this time, you’ve got 10 years… Go!
This is for the upcoming Earthbound cartridge I am making from terrible EA sports games. If you object, you have no soul!