If you updated directly from 9.00 to 13.02, a hardware revert is technically possible by following these steps:
The most critical thing to understand is that Sony signs their firmware updates. If you are on firmware 10.01, the system checks the digital signature of any update you try to install. Since older firmwares (like 9.00) have different signatures, the system rejects them. ps4 downgrade 1302 to 900 top
If you updated directly from 9.00 to 13.02, a hardware revert is technically possible by following these steps:
The most critical thing to understand is that Sony signs their firmware updates. If you are on firmware 10.01, the system checks the digital signature of any update you try to install. Since older firmwares (like 9.00) have different signatures, the system rejects them.