You must access the motherboard to reach the NOR (flash memory) and Syscon (system controller) chips.
to your previously installed firmware if that version was 9.00. The "Revert" Method vs. Traditional Downgrading
from , it is essential to understand that there is no "software-only" fix. Because Sony does not allow firmware downgrades through the system menu or Safe Mode, you must use a hardware-based method known as a Firmware Revert . The Requirement: The "Slot" System
You must access the motherboard to reach the NOR (flash memory) and Syscon (system controller) chips.
to your previously installed firmware if that version was 9.00. The "Revert" Method vs. Traditional Downgrading downgrade ps4 903 to 900 fix
from , it is essential to understand that there is no "software-only" fix. Because Sony does not allow firmware downgrades through the system menu or Safe Mode, you must use a hardware-based method known as a Firmware Revert . The Requirement: The "Slot" System Exploring Downgrading PS4 Firmware: Risks