Hfw-4.91.1-ps3updat.pup Link

The console will automatically restart during the process. Do not turn off the console during the update.

If you update your PS3 to the standard Official Firmware (OFW) 4.91, the system becomes "locked." You won't be able to install homebrew apps, backup managers, or emulators. HFW-4.91.1-PS3UPDAT.PUP

Before updating your PS3 console using the HFW-4.91.1-PS3UPDAT.PUP file: The console will automatically restart during the process

. This specific firmware is a modified version of the official Sony 4.91 update, designed to re-enable the "exploitable" WebKit entry point that Sony patched out, allowing users to install (Homebrew Enabler). Core Purpose & Functionality HFW-4.91.1-PS3UPDAT.PUP