running firmware 13.02 directly to an older, jailbreakable system software using only a USB stick or a simple menu update file is completely impossible. Sony’s system software is designed as a one-way security mechanism; once the console installs firmware 13.02, it permanently blows internal fuses (eFuses) to prevent simple software rollbacks. However, if you accidentally updated your console and lost access to your favorite homebrew apps, a sophisticated hardware-based method known as allows you to revert your PS4 to the exact firmware version you were running right before installing 13.02.

This update specifically patched kernel vulnerabilities used for previous jailbreaks like Poopsploit .

This is the only way to change your firmware version, and it is .

A backup of your console's NOR/Syscon from when it was on a lower firmware.

Why someone might want a downgrade

Background: PS4 Firmware and Security Model

Solder lines from your hardware flasher to the target pins of the NOR chip. Read the storage multiple times to create a byte-for-byte backup image on your computer.

For users without the time or technical skills for a hardware revert, the most pragmatic solution is often to purchase a second-hand PS4 that is confirmed to be on a jailbreakable firmware.

If your console has been updated to firmware 13.02, this guide breaks down why standard software methods fail, how the hardware-level "revert" process functions, and what your options are for homebrew. The Truth About USB "Update Downgraders"