Here you can learn how to fix Fingerprint issue in Dell Phone.
Fix Fingerprint Problem in Dell
- Restart your device
- Check that you are using the same finger you used when you enrolled in Fingerprint Unlock.
- Ensure your display is clean and without dirt.
- Re-enroll your fingerprint again
- Check for software updates
- Clear the cache and data of the fingerprint scanner app
- Check for physical damage on your phone screen
- Try using a different finger
- Remove any screen protectors or cases
- Final method : Factory reset your device