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Today, the SCPH-90001 BIOS represents the "end of history." It is the final version of the operating system that powered games like God of War II , Shadow of the Colossus , and Final Fantasy XII .
If you open the menu of a 90001, the look is sleek and modern. But hidden within the system diagnostics is the capability for DVD Region Free playback (specifically for movies). While the console was region-locked for games, the BIOS was sophisticated enough to handle different DVD regions, though Sony typically locked this down for legal reasons. Modders eventually found ways to toggle these flags in the BIOS, turning the humble 90001 into a universal DVD player—no small feat in an era before streaming dominated. ps2 bios scph 90001