Do you have a from a previous firmware version?
Write-up date: April 2026. Based on public PS4 hardware/software research by the Scene (CTurt, fail0verflow, FlatZ, SpecterDev, TheFlow, etc.) ps4 downgrade 13.02 to 9.00
The most important thing to know is that with firmware 9.00. Sony’s system software is designed to only accept "higher" version numbers than the one currently installed. If you try to install 9.00 over 13.02 using standard methods, the console will simply block the installation. The Hardware Revert Method Do you have a from a previous firmware version