Public jailbreaks exist for specific firmwares (most notably firmware 9.00 and certain entry points for firmwares up to 11.00).
If your goal is to run homebrew or jailbreak your console, you should look for legitimate methods rather than fake downgrade tools. ps4 tool downgrade v100 exe link download
Even if a software tool claims to modify your PS4 via USB, running unverified code can permanently break (brick) your console. Public jailbreaks exist for specific firmwares (most notably
If you encounter websites or videos offering a direct link to download a "PS4 Downgrade Tool v1.00.exe," do not download it. These files are almost universally fake, malicious, or part of survey scams designed to steal your personal data. If you encounter websites or videos offering a
Only follow guides from reputable PlayStation scene developers and websites (such as Wololo.net or specialized console hacking subreddits). Never download executable files from random YouTube descriptions or file-sharing blogs.