Hfw-4.91.1-ps3updat.pup File
As of mid-2026, Evilnat is the recommended CFW for compatible systems, but for everyone else, HFW-4.91.1 remains the standard. Final Notes and Precautions
Plug the USB drive into the rightmost USB port of your PS3 (the port closest to the disc drive). Ensure no game disc is inside the console. Turn off the PS3 completely (red standby light).
For advanced users, HFW-4.91.1-PS3UPDAT.PUP also serves as a platform for the PS3Xploit FlashWriter tool. This is for owners of older, CFW-compatible PS3s who have accidentally updated to the latest OFW and lost their jailbreak.
You can, but it’s risky. Sony can detect modified syscalls even over HFW. If you want to play online, do not enable HEN before logging in. And never use obvious cheats or sync hacked trophies. HFW-4.91.1-PS3UPDAT.PUP
Article last updated: Adheres to scene standards as of late 2024/early 2025. Firmware filenames are accurate at time of writing.
| Risk Level | Issue | |------------|-------| | | Console Ban: PSN account and console ID may be banned by Sony. | | Medium | Brick Risk: Incorrect installation or power loss during update can permanently brick the console. | | Low | Malware: Obtain only from trusted sources (e.g., official PS3Xploit team). Untrusted builds may contain malicious patches. | | Legal | Installing HFW/CFW violates Sony’s Terms of Service and may void warranty. |
The .1 revision typically indicates a maintenance release. Early versions of HFW 4.91 had issues with certain console models (particularly the CECH-25xx and CECH-30xx series) where the exploit would fail to load consistently. Version 4.91.1 patches the stability of the and improves compatibility with HEN (Homebrew Enabler) . As of mid-2026, Evilnat is the recommended CFW
This specific version is tailored to match the security update released by Sony in 4.91, ensuring you can still connect to PSN while having the security loopholes necessary for hacks like ps3toolset . Why Use HFW-4.91.1 over Official Firmware?
: The file must be named exactly PS3UPDAT.PUP and placed inside that UPDATE folder.
If you want to move forward with configuring your console, let me know: Turn off the PS3 completely (red standby light)
The file is the core installer file for the PlayStation 3 Hybrid Firmware (HFW) version 4.91.1 . It serves as a modified system software update designed to bridge the gap between official Sony security restrictions and the PS3 Homebrew ecosystem.
When you download this file, its name will likely be HFW_4.91.1_PS3UPDAT.PUP . You must before your PS3 will recognize it. This is a crucial step.