Quick answer
Most fingerprint failures come from the finger or the enrolment, not the machine: a dirty or scratched sensor, dry, wet or worn fingers, or a fingerprint enrolled badly. Clean the sensor, re-enrol two fingers carefully, and consider face or card for staff with worn prints. If nothing reads at all, check power, settings and the sensor itself.
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Shop all fingerprint products →Key takeaways
- Clean the sensor glass gently.
- Re-enrol with the finger flat and centred.
- Dry or worn fingers: enrol a different finger or use face/card.
- Nothing reads at all: power, firmware or sensor fault.
- Check verification mode wasn't changed.
01Symptom guide
| Symptom | Likely cause | Fix |
|---|---|---|
| One person fails often | Poor enrolment or worn fingers | Re-enrol two fingers; add card or face |
| Everyone fails | Dirty or damaged sensor | Clean; replace sensor if scratched |
| Sensor doesn't light | Power or hardware fault | Check adapter; service |
| Asks for card or PIN | Verification mode changed | Reset verification mode for the user |
02Machine not working at all?
- Try another power adapter
- Restart the machine
- Check it isn't in a menu or locked by an admin
- Check the date and time (punches look missing if wrong)
When to call a professionalMachine locked, not syncing or lost its data? Qyvea services ZKTeco attendance and access devices: resets, admin recovery for the verified owner, software setup and staff re-enrolment, on site or remotely where possible. Call 0113 301 244 or WhatsApp us.
03Frequently asked questions
Why does my fingerprint not register?
Usually a dry, dirty or worn finger, or a poor original enrolment. Re-enrol with the finger flat and centred.
Can I clean the fingerprint sensor?
Yes, gently with a soft dry cloth; avoid scratching it.
