So I was going through my games and had a SMB2 cart that just wouldnt boot. Cleaned the pins with alcohol, still wouldn't boot. Took it apart and there was a lot of black crud on the pinouts:
So I got some aluminum polish I bought from autozone a few years ago:
And with a dremel buffer (you can do this by hand easily with a cloth, just dont get the stuff on your hands):
Boots every time now.
Just thought I'd throw this tip out there. Try to avoid rubbing it on the chips and clean it all off with alcohol. You wanna rub the polish on until it gets black in a circular motion, then take a clean cloth and take it off. Wipe down with alcohol and you're good to go.
Don't suggest doing this unless you have a cart that isn't working very well as you're removing the original coating.
So I got some aluminum polish I bought from autozone a few years ago:
And with a dremel buffer (you can do this by hand easily with a cloth, just dont get the stuff on your hands):
Boots every time now.
Just thought I'd throw this tip out there. Try to avoid rubbing it on the chips and clean it all off with alcohol. You wanna rub the polish on until it gets black in a circular motion, then take a clean cloth and take it off. Wipe down with alcohol and you're good to go.
Don't suggest doing this unless you have a cart that isn't working very well as you're removing the original coating.