Tool Ps4 | Downgrade

The actual procedure is delicate and carries a high risk of "bricking" (permanently breaking) the console:

The PS4 keeps a backup of the previously installed firmware version on the Syscon chip in an alternate slot. If your console was on firmware 9.00 and you recently updated to 11.02, firmware 9.00 still exists as a ghost copy in the chip. downgrade tool ps4

However, a technical process known as a "firmware revert" or "Syscon downgrade" is real. It does not involve installing a file from a USB drive. Instead, it's a hardware-based manipulation that reverts the console to the firmware it was on immediately before its last update. You can only revert to the direct previous firmware version you were on (e.g., from 12.50 back to 12.02). The actual procedure is delicate and carries a

A microchip that acts as the console's system controller. It stores a log of the current and previous firmware versions installed on the machine. It does not involve installing a file from a USB drive