Downgrading the PS4 system firmware (e.g., from v12.00 to v11.00) is a complex hardware-level procedure. There is no simple "v100" software tool that can do this with one click. Methodology
In late 2024 and early 2025, a wave of YouTube videos and forum posts claimed a “new PS4 tool downgrade v100” had been leaked. Most of these are leading to password-protected RAR files or survey scams. However, one real development has emerged: Syscon firmware manipulation . ps4 tool downgrade v100 new