Emulation: Running retro consoles (like SNES or PS1) directly on the PS4 hardware. Linux Support: Turning the PS4 into a functional PC. Current Recommendations for 13.02 Users
The only proven way to downgrade a PS4 involves complex hardware modification. This process is known as the "Syscon Revert."
The primary motivation for avoiding version 13.02 is the "Jailbreak." Most stable PS4 exploits currently target firmware 9.00 or 11.00. These exploits allow for:
Game Backups: Playing copies of owned media to reduce wear on the disc drive.