(SOLVED) MV-1FZ Doesn't work with Unibios, but works with stock BIOS?

As the title suggests, I have a Neo Geo MV-1FZ board that for whatever reason, does not work with a freshly burnt Unibios v4.0. The result was just a screen that is garbled and flickers. Does the same thing without a BIOS in it. But put in the stock BIOS, and it works fine. Any one ever had an issue like that before? It's quite odd...

I decided to see what would happen if I burnt a Neo Geo AES BIOS image onto a 27c1024. No dice, same issue. I dug out my parts board and stole its BIOS, and swapped it out on my MVS. Works fine with the different stock BIOS.

Perhaps you're burning the eprom incorrectly.

How so? I have the settings set to 27c1024. For context, my programmer is a VS4800 Stager. Works fine with making NES repros

shadowkn55 said:

Perhaps you're burning the eprom incorrectly.

Click to expand...

Looks like you were right. After fiddling with the settings a bit more, suddenly it burnt properly. Now it works fine. Thanks!