Running access control software on an expired trial or an unactivated license introduces severe security vulnerabilities and operational bottlenecks. 1. Avoiding System Lockouts

If you bought the hardware directly from ZKTeco, contact their regional technical support team with your device serial numbers. Step 3: Input the Register Key

Often, the software requires you to request a public license key. You may be prompted to download a text file or input a serial number that links to the official ZKTeco platform.

Installing the ZKBioLock software without a license will prevent you from adding locks to your system, as the "Valid Days" will show zero. The software can be activated in two primary ways, depending on your internet connectivity.

Locate the string of characters labeled , Machine Code , or Product Key . Copy this code exactly. 2. Request the Register Key

: Instantly invalidate lost or stolen cards within the system. Audit Trails

Set precise time zones, holiday schedules, and multi-user access privileges.

I can provide tailored troubleshooting steps or guide you through the device configuration. Share public link

What does the screen display when you try to open it?

ZKTeco issues registration keys based on hardware serial numbers or specific project requirements. Follow these steps to get an official, authorized key: 1. Purchase Authorized ZKTeco Hardware