You must be proficient in soldering fine wires to the PS4 motherboard.
Infinite loops of human verification forms that steal personal data. ps4 tool downgrade v100 exe download work
The process requires dumping (copying) the data from both the NOR and Syscon chips to a computer to modify and patch the Core OS. 2. How the Process Actually Works You must be proficient in soldering fine wires
If your goal is to play older versions of specific games (to use glitches or older exploits), you can use safer, software-based methods that do not require a console downgrade. Downloading and using unofficial software
If you are looking for a real way to revert your firmware, it requires significant technical skill and hardware:
This article is for educational and informational purposes only. Downloading and using unofficial software, including "downgrade tools," often violates Sony’s Terms of Service. Modifying your PS4 can lead to a permanent console ban from the PlayStation Network (PSN), warranty voidance, and potential bricking (destroying) of your device. Proceed at your own risk.
However, you must be extremely cautious. In the PlayStation homebrew scene, software-only downgraders that run via a Windows executable do not exist. The Reality of PS4 Downgrading