A legitimate jailbreak method for firmwares up to 11.00, but it cannot downgrade a 10.00+ system.
Some tutorials confuse "downgrade" with "reinstalling the same firmware." If you are on 9.00 and install a 9.00 Recovery PUP, you aren’t downgrading. You are just reinstalling. This requires no tool. ps4 tool downgrade v100 exe download work
Using the PS4 Tool Downgrade V1.00 EXE carries several risks, including: A legitimate jailbreak method for firmwares up to 11
Even if a new exploit is discovered on 10.00, you cannot downgrade to 9.00. You can only jailbreak 10.00 directly (if an exploit exists). Currently, the only public jailbreak for higher firmwares is limited (e.g., PS4 11.00 has a PPPwn exploit, but again, no downgrade to 9.00). This requires no tool
Based on current information as of April 2026, any ".exe" tool claiming to downgrade a PS4 from firmware 10.00+ to a jailbreakable version (like 9.00 or 11.00) with a single click is a scam and likely malicious. True PS4 downgrading is not a software-based process. The Reality of PS4 Downgrading No "One-Click" Software:
There is no executable tool that can bypass Sony's firmware restrictions. Hardware Required: