Ps4 Downgrade 13.02 To 9.00 __top__

Firmware is tied to the console's internal flash memory (NOR/NAND), not the hard drive. Replacing the HDD will not change the system version.

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From a software perspective, the downgrade is blocked by a hardware mechanism on the motherboard. The console’s firmware data is not stored solely on its hard drive. It is also written to a few small, read-only, and encrypted chips permanently soldered onto the motherboard. These chips, particularly a key component called the , act like a secure vault. They keep a log of your console's update history and are designed to block the installation of any system software that is older than the one currently installed. This is a security measure implemented by Sony to prevent just this sort of rollback. Firmware is tied to the console's internal flash

You write the modified data back to the chips, desolder the equipment, and reassemble the console. This link or copies made by others cannot be deleted