Includes a robust recovery menu and VSH menu for advanced system tweaks.

Sony released the 6.61 official firmware in 2015 as a minor update, years after the console's peak. While officially intended for security and stability, for the modding community, it became the final canvas. The 6.61 PRO-C2 firmware allows users to bypass the digital signing process required for applications. This transition from a locked "consumer" device to an "administrator" state enables features like:

The original release group "PRO-C2" is hosted on GitHub and major homebrew archives (like Brewology or Wololo.net). Search for: "PRO-C2_661.zip" or "6.61 PRO-C2 Release"