Use a guided check for phone fingerprint or face unlock before buying a used device.
Ask the owner to lock and unlock the phone using their enrolled fingerprint or face three times. Record whether it worked reliably.
The website cannot read fingerprints or certify biometric hardware. A failed unlock can result from enrollment, a protector, lighting or settings. Do not infer a screen replacement from this alone.
The owner performs the unlock. Never ask for biometric data, passwords or a passcode in this page.
Results are saved only in this browser for up to 24 hours. This single test does not replace a complete used-phone inspection.
Run the full buyer check