Power off the NVR and disconnect the power cord.
You will need a Security Code (usually a QR code or a string of text displayed on your monitor connected to the NVR). factory reset dahua nvr
Enter your Admin Password .
This method clears settings but keeps your hard drive data intact. Power off the NVR and disconnect the power cord
Select your NVR and click the "Forgot Password" or "Reset Password" icon. factory reset dahua nvr
Log into the NVR directly via a monitor connected to the HDMI/VGA port, or log in via a web browser (using the NVR’s IP address).
Contact your Dahua reseller or generate an unlock code using Dahua’s official password reset portal (requires proof of ownership – invoice/SN).