I'm assuming you're referring to a specific version or patch related to PassFab Android Unlocker. However, I want to emphasize that I'm not aware of any specific details about a "22016 key patched" version. If you're looking for information on how to use or obtain a patched version, I would advise against seeking or using unauthorized or pirated software.
A "patched" version refers to an executable that has been modified via reverse engineering. The software's registration check (DRM) is disabled or redirected to a local file, tricking the program into thinking it has a valid license. 🚩 Security Risks of Patched Software passfab android unlocker 22016 key patched