Sony has recently shown a renewed interest in PS2 emulation, releasing PS2 classics on PS4 and PS5 with trophy support. However, these official emulators use proprietary BIOS implementations, not the original SCPH-10000.
[ERROR] Executing fallback: scph10000.exec.log…
Disclaimer: This article is for educational purposes only. The author does not condone downloading copyrighted BIOS files from unauthorized sources. Always adhere to your local copyright laws and respect the intellectual property of Sony Interactive Entertainment.
When you turn on a PS2, the BIOS is the first thing that runs. It: