Contact your local ZKTeco distributor or submit a ticket through the official . Provide the details listed above.

Click the "Generate" or "Calculate" button.

The safest and most reliable way to recover a password without risking malicious software is to contact the manufacturer directly.

The exact model number of your device (e.g., K40, uFace800, SpeedFace).

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ZKTeco devices feature a built-in mathematical algorithm for password recovery. This method generates a temporary "Super Password" based on the internal clock of your device. It requires no sketchy software downloads—only standard calculator logic. Step 1: Locate the Device Time Look at the main screen of your ZKTeco device.

: Dismantle the device and wait 30–60 seconds for a short beep.

Here is a straightforward comparison to help you decide.

: Turn off your ZKTeco machine, plug the USB drive into the device's USB port, and turn the power back on.

: In the support or downloads section, search for the password reset tool compatible with your specific ZKTeco device. Ensure you select the tool that matches your device's model and firmware version.

: Open an official ZKTeco Master Password Generator utility or use standard manufacturing formulas to calculate the 4-to-6-digit dynamic passcode for that specific minute.

Perform a backup of all user data and attendance logs. Disclaimer

This is the most reliable way to clear admin locks if the device is already connected to your network.

Many ZKTeco access control devices come equipped with a physical tamper switch. This is a security feature designed to alert you if someone attempts to open the device. However, it can be used as a master key to reset the admin password. This method works for models like the ZKTeco F18, F22, F28, F8, F7 Plus, SF-200, and many others. The process is surprisingly simple but time-sensitive:

For many ZKTeco biometric devices, you can generate a one-minute temporary "super password" using the current time displayed on the machine. Note the Time : Check the exact time on the device screen (e.g., : Take the number and subtract the time as a four-digit number (e.g., : Multiply the result by itself (e.g., button on the device. When asked for the Admin ID, enter

For software-level admin locks (not device-level), you can manually reset the database.

If you can see the on the screen