Ps4 Downgrade Tool

It is not possible to perform a firmware revert without this, or similar, physical tampering.

If you are looking for a downgrade tool because your system is stuck or slow, Sony provides official recovery methods that do not involve illegal software: ps4 downgrade tool

By using a hardware flasher (like a Teensy or Raspberry Pi) to manipulate the NOR and Syscon chips, you can toggle the console back to the previous firmware slot. It is not possible to perform a firmware

There are various PS4 downgrade tools available, including: To perform a firmware revert, you will need

Downgrading a PS4 is possible, but it requires advanced hardware modification, soldering skills, and a backup of your console's own unique data.

To perform a firmware revert, you will need a combination of physical hardware and specialized software: PS4 Firmware Downgrade: Reverting from 11.02 to 11.00

Reverting to a previous firmware requires micro-soldering, reading/writing the Syscon and Flash chips, and patching code manually.