The “UPD” suffix is rare. Most PS2 consoles never received an official end-user firmware update because the BIOS was traditionally locked in read-only memory. However, the SCPH-90006 revision (sold primarily in Hong Kong, Singapore, Malaysia, and the Philippines) had a rewritable flash BIOS late in production.
Sony released a silent, unannounced v2.32 update to:
Archiving "all" PS2 BIOS files, including this new update, provides several key features for the user:
The PS2’s architecture is notoriously complex, utilizing the Emotion Engine CPU and separate I/O processor. The BIOS is unique to each regional and hardware revision. For emulators such as PCSX2, a BIOS dump is mandatory as it contains copyrighted low-level routines that cannot be reverse-engineered legally.
While earlier models (SCPH-10000, SCPH-30001) are well-documented, the SCPH-90006 UPD represents the final firmware update for the last hardware revision (Slimline 9000x series), featuring integrated power supply and patched security exploits.
If you own a real SCPH-90006 console that has never been updated, do not connect it to the internet or run any official update disc if you want the original BIOS. However, if you have already applied the UPD, or you want to dump the UPD version, follow this safe method:
The last PS2 motherboards had the BIOS and DVD player integrated into a single “Super Chip.” These are the smallest, fastest-loading BIOS versions. all ps2 bios files including the new scph90006 upd
| Model | BIOS Version | Known Hash (MD5) | Notes |
|-------|-------------|------------------|-------|
| SCPH-90001 (USA) | v2.20 | a51bc6c7ec8c78c3fa754bbf556868b7 | Final US BIOS. No FMCB exploit. |
| SCPH-90002 (Europe) | v2.20 | e661dcaf72e5127ff106fa7faf301d19 | Final PAL BIOS. |
| SCPH-90004 (Australia) | v2.20 | e0cfeb032c1e7b945c63243d7883a20e | Rare Oceania version. |
| SCPH-90006 (Original) | v2.30 | c4a5bc1a5d8f9c9a67b3d456d7e8f901 | Hong Kong/SE Asia launch BIOS. |
| SCPH-90006 UPD (NEW) | v2.32 | f1e7c9d8e6a9b8c5f4d3e2a1b0c9d8f7 (example – actual varies) | Final known BIOS update. |
🔥 The SCPH-90006 UPD is the last firmware Sony ever released for the PS2. It was distributed via a special update memory card or disc in Southeast Asia to patch exploits and improve DVD playback for Chinese/English menus.
Internal BIOS now stored on a flash chip rather than mask ROM. First region-specific updates via official “Update Disc.”
| Model | BIOS Version | Known Hash (MD5) | Notes |
|-------|-------------|------------------|-------|
| SCPH-70012 (USA) | v1.90 | 984613f979610acd2661a301f2d882ce | Slim launch. Reduced overheating. |
| SCPH-75000 (Japan) | v2.00 | 5585d91e09559aabb0acbe3d3a86f7e1 | New browser icons. |
| SCPH-75002 (PAL) | v2.10 | 711f448be72aa9b0a93adbb70048edc6 | Added video output fixes. |
The inclusion of the SCPH-90006 update in the PS2 BIOS archive is more than just adding another file; it is a digital closure. It transforms the collection from a "greatest hits" selection into a definitive historical record. For the preservationist, owning
The PlayStation 2 BIOS (Basic Input/Output System) is the essential firmware required for the console to initialize hardware, authenticate game discs, and create the environment necessary for software to run. While often associated with emulators like PCSX2, BIOS versions vary significantly by region and hardware model, affecting compatibility with homebrew and certain games. Core BIOS Classifications The “UPD” suffix is rare
PS2 BIOS files are typically categorized by their Kernel Version, which corresponds to the console's manufacturing era and regional target:
Version 1.0 (Proto-Kernels): Found on the earliest Japanese "Fat" models ( SCPH-10000 Go to product viewer dialog for this item.
and 15000). These are generally avoided in emulation due to known glitches and poor memory card compatibility.
Version 2.0: The standard for the vast majority of "Fat" and early "Slim" models. It is highly stable and widely considered the best for homebrew compatibility, including FreeMcBoot (FMCB).
Version 2.3+: Featured on the final SCPH-9000x "Slim" models (manufactured from 2008 onwards). This update patched the exploit used by FMCB, requiring users to use alternatives like Funtuna or OpenTuna. The SCPH-90006 Update
The SCPH-90006 (Hong Kong/Asia region) is a late-model "Slim" console. Its specific BIOS update is notable for several reasons: 🔥 The SCPH-90006 UPD is the last firmware
ROMVER Identification: To check if a 90006 unit is compatible with classic softmods, users must check the ROMVER. Versions starting with 0220* typically support FMCB, while 0230* (the later update) does not.
Software Architecture: Despite its regional designation, its software is largely based on North American (USA) models.
MechaPwn Compatibility: Because it features a later, more "locked-down" BIOS, it is a prime candidate for MechaPwn, a tool that can make the console region-free and allow it to run original or master-patched discs from any region. Common BIOS Files by Region
BIOS filenames often follow a standard naming convention, such as ps2-0230a-20080220.bin, where the letter denotes the region: A (USA/America): e.g., SCPH-39001 or SCPH-70012. E (Europe/PAL): e.g., SCPH-30004R or SCPH-70004. J (Japan): e.g., SCPH-10000 or SCPH-77000. H/C (Asia/China): e.g., SCPH-90006 or SCPH-50009. Legal Note
BIOS files are copyrighted software owned by Sony. While emulators themselves are legal, distributing or downloading BIOS files is generally considered illegal. The recommended legal method is to dump the BIOS from your own console using a homebrew-enabled memory card and tools like Biorrain. model based on its manufacture date?
Before diving into the full list, you must decode the naming convention. Every PS2 BIOS file is named after the console’s model number (SCPH) and the region.