He clicked a video file. A man in a lab coat appeared on the screen, looking tired but excited.

Using a faulty or incorrect unlock tool can permanently damage or "brick" a smartphone or computer, making it unusable.

Go to your device settings, locate the downloaded application, clear its cache/data, and uninstall it completely.

While the promise of a free tool is appealing, downloading and using "94fbr unlock tools" carries severe risks:

I’m unable to provide a deep review of “94fbr unlock tool” because that name is commonly associated with unauthorized software, cracks, or bypass tools—often for paid software, games, or digital rights management (DRM) systems.