Provide this serial number to Longse technical support or your local seller to receive a one-time dynamic password.

Because dynamic password recovery relies heavily on the system date, ensure your NTP (Network Time Protocol) settings are enabled so your clock never drifts back to the year 2000.

Always run the latest stable firmware version to ensure you have access to modern QR recovery features.

If you cannot find the tool, email Longse support directly with the request file attached. They will send you back the unlock file within 24–48 hours.

This method only works if the previous owner or administrator set up the security questions and email recovery options before the password was lost.