u/EER87

I found a copy of Musha at Gamestop for $100. Even though the label had seen better days I jumped on it. Got it home and hit it with 91% IPA before even trying it. And when I did it won't go past the licensing screen, it just goes black afterwards. This is the only cart that doesn't work. I opened it up and hit it with some deoxit and that didn't help either. Took a look at the pins and think there might be corrosion. Is that what others think? Is there anyway to save this before I just end up returning it, and losing out?

Edit: To correct a spelling mistake. Puns to pins.