Insert the USB drive into the front or rear port of your NVR. Go to > Maintain > Upgrade .
How To Update Firmware on a Dahua Recorder | Step-by-Step Guide dhi-nvr4108h-8p firmware
It is vital to use firmware specific to your model. Installing the wrong version can "brick" the device, making it unusable. Insert the USB drive into the front or rear port of your NVR
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: Newer firmware versions support advanced AI features if the connected cameras support them. This includes Face Detection Perimeter Protection IVS (Intelligent Video System) People Counting SMD (Smart Motion Detection) dhi-nvr4108h-8p firmware