Contact your vendor or the seller where you purchased the recorder. Provide them with your Serial Number and Hardware Version. They can request the specific file from Dahua technical support.

How To Update Firmware on a Dahua Recorder | Step-by-Step Guide

If your system is working perfectly and is isolated from the internet, you may not need to update. However, if you use remote access via P2P or DDNS, update immediately to the latest security patch.

If you are updating this device in 2024 or later, security should be your priority.

Finding the correct firmware can be difficult because Dahua restricts public access to their update servers.

After the XVR reboots, perform these checks:

on Dahua XVRs if the new version updates the bootloader or partition table. Attempting to force an older version will result in a "Broken Image" error. Always test new firmware on a non-critical recorder first.