[FIXED]Busted SNES cartridge? What to do? (Super Metroid)

[izarate]

FIXED: Super Metroid defaults to 00 Energy files when the battery is dead. If you have a cartridge that exhibits the same behavior, replace the battery and then clear all the files. A cleared file should say NO DATA instead of 00 Energy.



Original post:
Today I bought a Super Metroid cart at the flea market but there is something wrong with it: when you start the game Samus has 00 energy, thus she dies in the moment she appears.

http://www.youtube.com/watch?v=020T9bby-IM

I thought "what the..." and proceed to open the cart. There was the lousiest battery replacement job I've seen. After cleaning the mess, the cart still has the bug.

So, the question is: has someone ever seen something like this? what could I do?


EDIT:
I also bought Uniracers and it acts strange too: In a SNS-001 rev. SHVC-CPU-01 the game plays fine but in a SNS-001 rev. SNS-CPU-GMP-02 and rev. SNS-CPU-RGB-01 the game just shows garbled graphics. The game's PCB looks fine and I cleaned the contacts before testing so that's not it.

In my brother's SNES SNS-001 rev. SHVC-CPU-01:


In my SNES SNS-001 rev. SNS-CPU-RGB-01:




By the way, the same guy gave me a NES Advantage and a Mad Catz Fighter Pad for the SNES because they didn't work, but I was able to repair them pretty easily so I guess we're even. In the worst case I plan to use the cart shell with a Tototek flash card but I'd still like to have a functional cartridge.