Pokémon Red goes white

Pokémon Red goes through the Nintendo splash screen and then turns white. The game doesn't start.

I cleaned the cartridge, performed a reflow, replaced the battery, checked for corroded parts, but found nothing. I traced the entire circuit and identified all components.

I don't know what to do next. Does anyone have any ideas?

Thanks everyone.

First - logo

Second - white

Third - Chip

Fourth - Back

Fifth - Trails (all working)