Finally got it. Saw a YouTube e comment that said to first flash the unirom and plug-in combo and then flash the standalone. Did just that and it works perfect. Only question is, what do the other ROMs do? I need nothing more than the ability to boot backups and imports. Thanks!

So, I purchased a used GameShark that the listing stated it was a v2.0 to flash with ubirom for playing imports and backups. I confirmed that it would boot in the normal GameShark ROM. I did a disc swap and attempted to flash the latest unirom software. With the switch in the up position it detects ...