Biometric authentication not working

4.5

The system fails to offer or recognize fingerprint or facial data for login.

Symptoms
  • "Biometrics unavailable"
  • Scanner doesn't light up
  • Fall back to PIN
Possible Causes
  • Hardware failure
  • Dirty sensor
  • Software update bug

Step-by-Step Fix

1

Clean the Sensor

Wipe the fingerprint reader or camera lens with a clean cloth.

2

Re-register Biometrics

Delete your old fingerprint/face data and set it up again.

3

Check Driver

In Device Manager, ensure the "Biometric Devices" driver is working.

When to See a Technician

If biometrics fail after a screen replacement, the new hardware may not be properly calibrated.

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