As of early 2026, the PS4 scene has advanced beyond the need to downgrade to 9.00 for many users: How to Jailbreak the PS4 on 9.00
Sony designed the PlayStation 4 with a "locked" firmware system. You cannot simply install an older version from a USB drive or reset the console to an earlier firmware via Safe Mode. If your console is already on 13.02, it has "blown fuses" (figuratively) that prevent older software from running. The Only Method: Hardware Reversion (Syscon Revert) ps4 downgrade 13.02 to 9.00
There are currently only two primary ways to "revert" firmware, both of which are technically demanding: As of early 2026, the PS4 scene has
Therefore, the direct downgrade from firmware 13.02 to 9.00 on a standard retail PS4 is technically impossible via software means. The system’s "Secure Boot" process verifies the firmware version against the burned fuses before the operating system loads. If the version number does not match the expected minimum version dictated by the hardware state, the console will refuse to boot, resulting in a "soft brick." While hardware modifications exist—specifically the installation of a "Modchip" (such as the Au or Beetle modchip)—these are invasive, require soldering skills, and generally allow the console The Only Method: Hardware Reversion (Syscon Revert) There
The screen went black. The progress bar appeared. 0%. 10%.
This requires advanced soldering skills to access the Syscon and NOR flash chips on the motherboard to "switch" back to the previous slot.
