Fingerprint smart locks have become synonymous with high-quality living, offering superior security, non-replicability, strong memory capabilities, portability, and theft prevention. However, occasional malfunctions may arise during usage, such as unresponsive buttons, dim lights, or difficulties in unlocking with fingerprints. In this article, we will explore seven common malfunctions of smart fingerprint door lock and provide detailed solutions to address each issue effectively.

1. Administrator Capacity Reached Issue:

When the maximum number of administrators is reached, login becomes unavailable.

Solution:

To resolve this issue, delete an existing administrator profile before attempting to log in again. This will create space for a new administrator to be added.

2. LCD Screen Display Issues Issue:

The LCD screen either does not display anything or shows incorrect information.

Solution:

(1) Check the power supply and ensure all connections are secure.

(2) If the issue persists, contact the manufacturer’s technical support team for further assistance. They can provide specific guidance based on the model and configuration of your fingerprint lock.

3. System Deadlock Issue:

The system becomes unresponsive and locked, rendering the lock unusable.

Solution:

To resolve a system deadlock, turn off the power supply, switch off the battery, and wait for a few seconds. Then, restart the system by turning on the power supply again. This will help reset the lock and restore normal functionality.

4. Login Timeout Issue:

Users experience login failures due to timeout errors.

Solution:

To avoid login timeouts, ensure that the finger is placed accurately on the fingerprint scanner. Additionally, ensure that the finger is placed within the required time frame and avoid excessive exposure to bright ambient light. Follow the lock’s operating procedure precisely to ensure successful login attempts.

5. PC Communication Failure Issue:

The biometric fingerprint door lock fails to communicate with the connected PC.

Solution:

(1) Verify the serial port settings on both the PC and the fingerprint front door lock to ensure compatibility.

(2) Check the communication line for any physical damages or loose connections. If necessary, replace the communication line to ensure uninterrupted communication between the lock and the PC.

6. Unresponsive Buttons and Dim Lights Issue:

Buttons do not respond when pressed, and the indicator lights are dim or non-functional.

Solution:

This issue typically occurs when the smart fingerprint lock’s battery is low. Therefore, it is essential to proactively replace the battery when the low-voltage warning is triggered. Timely battery replacements, which are typically required once a year, will ensure optimal performance of the lock.

7. Fingerprint Recognition Failure Issue:

The lock fails to recognize fingerprints, preventing successful unlocking.

Solutions:

(1) Try using a different finger for fingerprint recognition. Opt for a finger with fewer wrinkles, no peeling, and clear fingerprints, as these characteristics enhance recognition accuracy.

(2) Ensure that the finger covers a larger area of the fingerprint scanner, and apply even pressure during scanning.

(3) If the finger is excessively dry, and the scanner struggles to detect the fingerprint, rub the finger against the forehead to add some moisture.

(4) Regularly clean the fingerprint collection window to ensure clear and accurate scanning results.

(5) If fingerprint recognition continues to fail, consider using the password login option provided by the lock as an alternative.

By following these comprehensive solutions, users can effectively overcome common malfunctions encountered with fingerprint locks. Additionally, thorough testing after installation is vital to ensure optimal performance. By addressing these issues promptly and accurately, users can experience a seamless and secure interaction with their fingerprint smart door lock, enhancing both convenience and peace of mind.