Star Fox 2 Repro Cart Crashes

I finally finished my Star Fox 2 cart. It's different than the one in this thread, a different attempt anyway. Things turned out much better.

The game worked for a while. I was able to finish the Normal mode. The next time I played it, I played Hard Mode, and was able to play for a little over an hour, when the game crashed. Ever since then, the game seems to have gotten progressively worse. I was able to play for about a half hour before crashing in the next session.

After each crash, the game crashes within a very short period again upon a reset. It seems to work better after the game has had some time to cool down, but the game lasts for about 4 minutes when it's fresh at this point.

After each such crash, all the saved records (if any) on the cart are deleted.

So any advice is appreciated. Afraid I just got a bad Stunt Race FX cart, but any ideas to fix this one would be great. Thanks in advance, everyone. And now, the pics...

 

Just the obvious tips. Have you double checked your soldier points? Made sure nothing is touching?

 

Forgot to mention an important point.. After each crash, all the saved records on the cart are deleted. The new battery I ordered from Amazon was holding scores otherwise.

I checked my solder points with a multimeter to make sure the neighboring pins weren't making a connection. I will check again.

 

Try reflowing everything with flux.

 

Thanks for the suggestions. I'm still working on this. I did use flux the first time, but I think reflowing is a good idea to try next.

I checked the solder points. I rewired pin 16. I removed the battery. No change.

Is it really much of a possibility that the game could work for over an hour with some of the pins wired incorrectly?

I'm afraid I'll have to get another cart and start over.

 

Wired incorrectly? Not possible. Wired poorly? Sure, that could cause Intermittent issues.

 

I got a new Stunt Race FX cart and started over, using my same ROM chip. This one went even more smoothly, and I've had no problems with it so far. Just finished Hard mode.

Thanks to all who gave advice.

I'm afraid I just had the bad luck of getting a bad Stunt Race FX cart before, or something I did messed it up. I never tested that cart for more than a few minutes, so who knows if it even played Stunt Race FX well.

 

wow at amount of cables