OK. I was able to get past the firmware screen. The issue is that my OSSC isn’t doing any of the commands from my remote. The green light goes off when I press a button down but nothing happens.
The update did help 1080i but PS2s GT4 is registering as 1125i. I always thought 960i was the correct output. Anyway, while there is an increase in resolution the dithering on my 4K display looks pretty bad. It makes the game look psuedo line doubled.