As of April 2026, Unlike a simple update, Sony's firmware is designed to prevent "rolling back" to older versions via USB or Safe Mode to block security exploits.
Thus, . If you want 9.00, buy a console that already has it. how to downgrade ps4 9.60 to 9.00
: Connect a microcontroller (like a Teensy 2.0++ or a specialized TNC cable) to the syscon and NOR chips via soldering. As of April 2026, Unlike a simple update,