1 SATA III slot handling up to 6TB or 16TB (depending on exact sub-version revision). Network Protocol Compliance: ONVIF Version 2.4 conformance.
If you have already obtained the firmware file from CP Plus support, follow these steps to perform the update: Format a USB Drive : Ensure a USB flash drive is formatted to FAT32. Copy the File : Place the downloaded firmware file (usually a file) into the root directory of the USB drive. Connect to NVR : Insert the USB drive into one of the NVR's USB 2.0 ports. Access GUI : Log in to the NVR's user interface. Navigate to Setup > System > Upgrade Run Update : Select the firmware file from the USB drive and click . The device will restart once the process is complete.
Select the file from the USB list and click Start/Upgrade . The system will show a progress bar and reboot automatically once finished. Method 2: Remote Web Interface
Upgrading firmware may occasionally encounter problems. Here are solutions to the most common issues. cp-unr-4k2161-v2 firmware download
If you follow this guide, your 4K security device will regain stability, performance, and security. If you are still stuck, post your device’s full boot log or PCB photo to IP Cam Talk or Reddit’s r/homesecurity—the community often has archived copies of rare firmware files.
Since CP Plus uses Dahua hardware, sometimes the firmware is listed under a Dahua model (e.g., Dahua NVR52-4K2161). Check https://www.dahuasecurity.com → → Tools & Firmware → Search for “NVR52”.
The keyword leads many to third-party forums. Avoid them. Always use official sources. 1 SATA III slot handling up to 6TB
Plug the USB into one of the front or back USB 2.0 ports of your NVR.
Open a web browser and enter the NVR's IP address. The default IP address is typically 192.168.1.108 or 192.168.1.110 (the exact value can be found in the network settings of the NVR's local interface). Log in using your administrator credentials.
You can download the firmware for the CP-UNR-4K2161-V2 from the official CP Plus Support Portal or through authorized technical partners like Eye Tech Securities How to Update Your NVR Firmware Updating the firmware on your CP-UNR-4K2161-V2 Copy the File : Place the downloaded firmware
Some later V2 units support OTA updates through the or gDMSS Plus app. Go to device settings → Firmware Update → Check for updates.
After a major update, the NVR may reset to factory settings. The default username is typically admin .
A confirmation dialog will appear. Confirm to start the upgrade. The web browser will display a progress indicator. Once the upgrade completes, the NVR will reboot. You may need to log back into the web interface.
Place the .bin or .update firmware file in the root directory.