Only once you're on the custom firmware can you downgrade. Once the flash memory has been patched, you can install a custom firmware that matches the same version as the console's original firmware. This page explains how to use it, including instructions on how to back up the flash memory in case something goes wrong.

The firmware mode must be either CEX or DEX.Currently this takes the form of the BG Toolset, which you can access by going to in the PS3's web browser. If your PS3 can run custom firmware, it needs to be able to access the webpage necessary to jailbreak the console. It currently takes the form of a hybrid firmware you install on top of the original firmware to get various homebrew running.Ī complete guide on PS3HEN can be found here. If your PS3 cannot run custom firmware, you will need to use the PS3 Homebrew ENabler ( PS3HEN). Important Note: As with any modding procedure, failure to perform a single step in the process could potentially brick your console. *Only if the firmware MinVerChk reports is lower than 3.55.

However, a completely different exploit was found in the web browser for 4.82 that could reenable the component given the right conditions. To reenable it, it used to be that the console would need to be forcefully downgraded to 3.55. However, Sony would later fix this around 3.56 and newer. The primary attack vector for custom firmware is a component used for signature verification that could be found in models up until January 2011 (meaning if your PlayStation 3 had a factory version at or lower than 3.55, it could be modded out of the box with a simple upgrade to 3.55).

Mods for ps3 games