| Offset | Size | Content |
|--------|------|---------|
| 0x00 | 4 bytes | Magic number (~SCF or SCFV) |
| 0x04 | 4 bytes | Version of PUP format |
| 0x08 | 4 bytes | Header length |
| 0x0C | 4 bytes | File size |
| ... | ... | RSA-2048 signature |
| ... | ... | Encrypted update data (AES-128-CBC) |
In the early days (firmware versions 1.0 through 3.15), the PS3UPDAT.PUP was generally welcomed by the community. It brought new features: DVD upscaling, in-game XMB access, and support for Trophies.
Crucially, these early PUPs supported a feature called "OtherOS," which allowed users to install Linux on the console. Sony had marketed the PS3 as a supercomputer for the home, and the update files were the keys to unlocking that potential. The file was a tool of expansion, not restriction.
Using tools like ps3-pup-tool (open-source Python) or PUP Extractor by Evilnat, you can:
The PS3UPDAT.PUP file is the standard system software (firmware) update file for the Sony PlayStation 3 (PS3). It acts as the operating system, internally known as CellOS or GameOS, and is based on a fork of FreeBSD and NetBSD. Purpose and Functionality
System Updates: It contains the latest security patches, system settings, and features required for the console to function.
Reinstallation: If a hard drive is replaced or system software becomes corrupted, this file is used for a fresh installation.
Emulator Dependency: The RPCS3 emulator requires this official firmware file to provide the proprietary libraries and modules needed to run games. Recent Firmware Versions
Recent updates typically focus on improving system performance and security. Key Features / Changes 4.93 Latest update; focuses on system performance improvements. 4.89
Introduced mandatory device passwords for PSN login; disabled account creation on the console. 3.55
Historical milestone; the last official version that allowed easy installation of Custom Firmware (CFW). Installation Guide (Manual via USB) RPCS3 - General Guide - RetroDECK Wiki
Does RPCS3 require BIOS or Firmware? Yes, the PS3UPDAT. PUP firmware needs to be installed in the emulator. RetroDECK Wiki How to update PS3 console system software - PlayStation
These users download genuine Sony PUPs to:
Official source: Sony’s official PlayStation website (though Sony removed older versions, hosting only the latest).
| Method | Description | |--------|-------------| | USB | Manual download from Sony’s website, copy to USB, install via XMB → System Update → Update via Storage Media. | | Network | Direct download from Sony’s servers (same file format, retrieved internally). | | Game Disc | Some game discs include a newer firmware version as PS3UPDAT.PUP on the disc. |