Never run unverified executables on your PC in pursuit of a console mod. Always cross-reference any new tool release with trusted scene developers on reputable community forums before downloading.
You can generally only revert to the previous firmware version installed on that specific console. You cannot jump from version 12.00 directly to 9.00 if the previous version was 11.50.
To perform a firmware revert, you will need specific specialized tools: downgrade tool ps4 repack
Using specialized PC software to patch the Syscon registers.
If your console is currently on firmware 11.50, and your previous firmware was 11.00, a downgrade tool can help you revert back to 11.00. However, if your previous firmware was 11.02, you can only revert to 11.02, not all the way back to 9.00. The Reverting Process Never run unverified executables on your PC in
Fake software installers often contain trojans, crypto-miners, or ransomware that can infect your PC.
Gaining access to system-level settings typically restricted by the official firmware. Hardware and Technical Considerations You cannot jump from version 12
: Click-and-run batch files designed to automate complex command-line processes. How PS4 Downgrading Works: The Reality