Download Version 1.5.2
Before downloading any files, you must confirm your exact device model and its current system version to prevent soft-bricking the machine. Right-click on the live view screen and select Main Menu. Navigate to Maintain (or System) > Manager > Version.
Take a picture or write down the Model Number and the current Build Date.(Note: Some variants might read DHI-NVR4108H-8P while others might be the updated DHI-NVR4108H-8P-4KS2. They use different firmware files!) 📥 Step 2: Sourcing the Firmware
Because Dahua regionalizes its software to prevent grey-market distribution, the exact download repository will depend on where the device was purchased.
The Automatic Route: The easiest method is to let the machine find it. Go to Main Menu > System > Upgrade and click Manual Check. If connected to the internet, it will fetch the correct update directly.
The Manual Route: If you need to flash via USB or Web GUI, you must acquire the .bin update package. You should visit the specific regional Dahua portal or authorized vendor site where you registered the hardware. Alternatively, you can browse established community repositories like the Dahua Wiki Firmware Search Tool to look up your specific model branch.
⚠️ Warning: Never install firmware meant for another model or a different region, as it can lock the device or cause unexpected failures. 💻 Step 3: Executing the Firmware Update There are two primary manual methods to execute the update: Method A: Directly via NVR Local GUI (Using a USB Drive)
Download the firmware file to your computer and extract the zip file. Copy the .bin file onto a FAT32-formatted USB flash drive. dhi-nvr4108h-8p firmware
Insert the USB drive into the front or rear port of your NVR. Go to Main Menu > Maintain > Upgrade.
Click System Upgrade, browse and select the file from the USB drive, and click Upgrade.
The NVR will execute the install and automatically reboot. Do not power off the device during this process. Method B: Via a Web Browser (Network Upgrade)
Official Dahua Website: The safest place to find the firmware for your device is on the official Dahua website or through their support pages. You can usually search by model number.
Support Pages: Look for a "Support" or "Downloads" section where you can find firmware updates.
.bin or .dav file from the Dahua website (or your OEM provider) and upload it via the web interface. There is no "One-Click Update" button in the UI.To identify installed version:
Main Menu → System → Information → VersionSetup → System → System Info → Versioncat /proc/version or cat /etc/versionKey fields to note:
V4.002.0000000.0.R.2106302021-06-30V3.2.3.01.00Surveillance technology evolves rapidly. New firmware may unlock support for H.265+ compression (saving storage space), AI functionality (line crossing, intrusion detection), or compatibility with newer, high-megapixel IP cameras.
Sources (legitimate only):
Typical filename format:
DH_NVR41XX-4KS2_MultiLang_V4.002.0000000.0.R.210630.bin
Updating a Dahua NVR is straightforward, but you must follow the rules.
What You Need:
.bin file or a zipped folder containing a .bin file).The Process:
.zip file, extract the contents. Do not put the zip file on the USB drive. Place the .bin file in the root directory of the USB drive (not inside a subfolder).Upgrading the firmware on your Dahua DHI-NVR4108H-8P ensures access to the latest security protocols (like Security Baseline 2.1 or 2.3), fixed bugs, and improved AI features. Before proceeding, verify your specific hardware revision, as the "4KS2" and "EI" series require different files. 1. Preparation
Identify Version: Check your current version via System > Information.
Download Firmware: Obtain the .bin or .zip file from the official Dahua Support File Server or DahuaWiki.
Verify Model: Ensure the filename matches your model prefix (e.g., DH_NVR4XXX-4KS2). 2. Update Methods Method A: Web Interface (Recommended)
How To Update Firmware on a Dahua Recorder | Step-by-Step Guide Before downloading any files, you must confirm your
Never download firmware from random forums or file-sharing sites. Malicious actors inject malware into fake firmware files.