Disclaimer: Modifying your PS4 console can violate the warranty and Sony's Terms of Service. Always research thoroughly before attempting any modifications.
Instead of trying to downgrade a newer console, the PS4 modding community generally advises these paths:
Many sites claim to offer a USB downgrade tool. These are scams. They are usually malware designed to steal information. Never pay for or download ".pkg" files claiming to downgrade your PS4. downgrade tool ps4
Before attempting any of these procedures, be sure you fully understand the technical requirements and the very real risk of permanently damaging your console. Your safest bet is always to check your firmware version and, if you are on an exploitable version, to simply stay there and not update.
YouTube videos showing a console magically transforming from firmware 11.50 to 9.00 in a matter of seconds, usually with the comments disabled or filled with bot accounts. Disclaimer: Modifying your PS4 console can violate the
Exploit developers (like TheFlow, SpecterDev) work on newer firmwares. Historically, jailbreaks have appeared for 6.72, 7.55, and 9.00. Firmware 10.01 and 11.00 may see public exploits in the future. Patience costs $0.
(only because some hardware can be repurposed for other projects) These are scams
This method does not allow you to pick any random, arbitrary firmware from the past. Instead, it allows you to revert the console back to the that was installed on that specific machine before the last update. How the Revert Method Works: