: Desolder the wires, reassemble the console, and boot into Safe Mode to re-initialize the backup firmware.
Struggling with error codes 1302 and 900 on your PS4? This long-read article explains what these codes mean, why a “downgrade” is virtually impossible on stock hardware, and the safest ways to fix update loops without bricking your console.
Despite the impossibility of a true downgrade, a process called a or "CoreOS Swap" exists. This method takes advantage of the fact that the PS4 motherboard saves the data of the current and previous firmware versions. The revert procedure essentially swaps the "active" firmware slot with the "backup" slot.
As of 2026, the modding scene has become more advanced and diverse. Newer exploits like , which boasts an 80% stability rate, allow for a USB-free jailbreak on firmware 9.00. Furthermore, while 9.00 remains the premier choice, other exploit chains, such as the Poops Exploit from TheFlow, are paving the way for jailbreaks on higher firmwares like 11.00 and beyond, changing the landscape of PS4 modding. ps4 downgrade 1302 to 900 top
How to Revert the PS4 to a Previous Firmware (Full Tutorial)
Sony's official stance is that system software updates are one-way. The console is not designed to let you uninstall an update. As a result, thousands of forum posts and articles confirm the simple truth: .
But since 9.00 is already jailbreakable (via PPPwn), downgrading from 9.00 to something lower is uncommon except for specific homebrew or exploit preferences. : Desolder the wires, reassemble the console, and
: Any form of downgrade (reversion) requires opening the console and performing risky soldering on the motherboard.
Yes, downgrading a PS4 from firmware 13.02 to 9.00 is theoretically possible, but it requires some technical expertise and specific tools. The process involves exploiting a vulnerability in the PS4's software, which allows you to install an older firmware version.
: The PS4 motherboard maintains two firmware "slots": one for the active version and one for the version immediately preceding it. Despite the impossibility of a true downgrade, a
: If you backed up your save data, you can now restore it.
According to the ConsoleMods Wiki , simply downloading an older firmware file and installing it via USB will not work; the console will throw an error. The PS4 firmware is protected by sophisticated security mechanisms, including signed firmware and a system controller (Syscon) chip that ensures you can only move forward in version numbers. The Only Exception: Hardware Revert
Firmware 9.00 is the holy grail because:
: If your "previous" version was already higher than 9.00, a standard revert cannot take you back to 9.00. No "Software Only" Fix : Factory resetting or "initializing" the console does