Search for authorized community archives (e.g., OwoMushi Pico Firmware site ) to download the target version.
If you hit a failure, your only other free option is (advanced), detailed in Part 5. pico 4 firmware downgrade free
Currently, there is that bypasses the Anti-Rollback protection on the Pico 4. If you see a YouTube video or a forum post claiming to have a "free downgrade tool," approach with extreme caution. It is likely: Search for authorized community archives (e
The demand for a is a symptom of a larger problem: Pico’s lack of transparency. Until ByteDance releases official rollback channels (don't hold your breath), the Fastboot method above remains the only working free solution. Search for authorized community archives (e.g.