Downgrading a Go to product viewer dialog for this item. from firmware to 9.00 is technically possible only through a process called reversion , which requires advanced micro-soldering and hardware modification. There is no "software-only" method or secret menu to perform this. 1. The Core Limitation: Firmware Slots
to patch the dump files, instructing the system to boot from the inactive slot. Flash Back: Write the patched files back to the respective chips. Reinstall Firmware: how to downgrade ps4 9.60 to 9.00