Downgrading a PS4 from a newer firmware (like 13.02) to an older one (9.00) is highly restrictive and generally not possible through software alone. While the community often seeks version 9.00 for its highly stable jailbreak, Sony's security prevents users from simply installing older firmware via USB. The Reality of PS4 Downgrading
Do you have a backup of your PS4’s NAND/NOR from a previous firmware version? ps4 downgrade 13.02 to 9.00
Limitation: If you updated from 12.00 to 13.02, you can only revert to 12.00. You cannot jump back multiple versions (e.g., from 13.02 all the way to 9.00) unless 9.00 was the very last version you had installed. Downgrading a PS4 from a newer firmware (like 13
Downgrading a PlayStation 4 from a high firmware version like Limitation: If you updated from 12
Many online tutorials and YouTube videos claim to offer “easy downgrade tools” for the PS4. These are invariably scams or malware. Running unverified executables on a PC or installing “update” files from untrusted sources can lead to data theft, ransomware, or permanent system corruption. Even legitimate attempts using recovery firmware (PS4UPDATE.PUP) from version 9.00 will be rejected by a console on 13.02 with error codes such as “CE-34788-0” (incorrect system software version). Repeated failed attempts do not degrade the hardware, but they waste time and create false hope.