: With the PS4 in Safe Mode, connect the USB drive with the downgrade files.
Open your PS4 and identify the Syscon and NOR chips. how to downgrade ps4 13.02
Alex successfully downgraded his PS4 from firmware 13.02 to 9.00. He was able to play his favorite games without issues. However, he was aware that his PS4 was now more vulnerable to security risks and that he might not be able to access certain features and games that required the newer firmware. : With the PS4 in Safe Mode, connect
Downgrading a PS4 from firmware version is a complex process that cannot be done through standard menus or a simple USB update. Since Sony prevents software-based downgrades to block security exploits, moving back to a previous version requires hardware-level modifications often referred to as "reverting". The Core Concept: Firmware Reverting He was able to play his favorite games without issues