You can update the firmware from a PC on the same network using the NVR’s web interface.

Never download firmware from random forums or file-sharing sites. Malicious actors inject malware into fake firmware files.

Found the firmware at [link]. Make sure your hardware version matches exactly: V1.0, V2.0, or V3.2. The wrong version will fail validation or brick the NVR.

Ensures the NVR works seamlessly with newer IP cameras, including those using ONVIF 2.4 or later.

: Download the official firmware from the DahuaWiki Firmware Page or the Dahua Security Download Center .

: Click Browse and select the .bin firmware file you extracted.