He opened the binary in a hex editor. The wall of numbers and letters scrolled past. To anyone else, it was gibberish. To Elias, it was a map. He scrolled past the boot sequence, past the 'Sony Computer Entertainment' text strings, and stopped at the memory management unit tables.
Looking for official Sony documentation or technical notes might provide insights into the functions and structures of this BIOS version. scph70012biosv12usa200bin better
It is important to remember that BIOS files are owned by Sony Interactive Entertainment. He opened the binary in a hex editor