Found in early Japanese models like the SCPH-10000 and 15000; known for minor glitches. v2.0 (Standard Slim/Fat):
| Model Number | Region | Version String | Known Hash (MD5 - Example) | Notes | | :--- | :--- | :--- | :--- | :--- | | SCPH-10000 | Japan (NTSC-J) | v1.00 | dc3c... | Original launch BIOS; DVD dongle required. | | SCPH-15000 | Japan | v1.01 | 1a7c... | Minor bug fixes. | | SCPH-30001 | USA (NTSC-U) | v1.20 | cba6... | First widespread US version. | | SCPH-30004 | Europe (PAL) | v1.30 | abb2... | PAL region introduction. | | SCPH-39001 | USA | v1.60 | f5f1... | Improved DVD playback. | | SCPH-50001 | USA | v1.90 | af1e... | Added IR receiver support. | | SCPH-70000 | All Regions | v2.00 | b0e5... | Slimline redesign; software-based DVD player. | | SCPH-75000 | Japan | v2.10 | e7c3... | Patched Independence Exploit. | | SCPH-77000 | All Regions | v2.20 | fd44... | Improved PS1 backwards compatibility. | | SCPH-79000 | All Regions | v2.30 | 3a98... | Power efficiency tweaks. | | | Japan | v2.30 | 9d1b... | Integrated PSU; last major revision. | | SCPH-90006 UPD | Asia (NTSC-J/HK) | v2.30UPD | 4e2a... | Final known update (2009) – Patch for MechaPwn vulnerability. | | SCPH-90008 | Australia (PAL) | v2.30 | 1f4d... | Equivalent to v2.30 with PAL-specific TV flags. | all ps2 bios files including the new scph90006 upd