If you experience issues with your fingerprint safe not opening during use, here are some solutions to help you troubleshoot the problem: Problem 1: The system responds slowly or not at all after pressing your finger. Possible causes and solutions include: 1. Low battery power – Make sure to replace the batteries if they are running low. 2. Dry fingers – Ensure your fingers are properly moisturized before attempting to open the safe. Problem 2: Difficulty in recognizing registered fingerprints. Possible reasons and ways to fix it: 1. Incorrect finger placement – Try placing your finger correctly on the sensor. 2. Poor fingerprint registration – Re-register your fingerprint for better recognition. 3. Poor finger texture – If your fingers are dry or have rough skin, try using a different finger. 4. Dry fingers again – Keep your hands hydrated to improve the scanning process. Problem 3: After pressing the "START" button, the screen lights up but there is no display, and the buzzer makes noise. Possible causes and troubleshooting steps: 1. Low battery power – Replace the batteries as soon as possible. Problem 4: Pressing any key has no response. What you can do: 1. Battery is completely drained – Use an external power source to open the safe, then replace the internal battery immediately. 2. Check the connections – Unplug and reconnect the device to ensure proper functionality. These tips should help you resolve most common issues with your fingerprint safe. If the problem persists, contact customer support for further assistance. Tunnel Ventilation Fan,Tunnel and Metro Ventilation Fan,Ventilation Fan for Railway Tunnel Yuncheng Anhong Enery-saving Explosion-proof Fan Co.,Ltd. , https://www.anhongfengji.com