Go to > Advanced > Upgrade on your monitor interface.
Each release of the V4.02.R11 firmware has historically included bug fixes, ONVIF compliance updates, and security patches. Note that security vulnerabilities have been identified in some older versions of the V4.02.R11 and V4.03.R11 firmware lines, which are detailed later in this guide.
Click and wait for the transmission and update verification cycle to complete. Troubleshooting Common Upgrade Failures
and covers a broad range of hardware configurations, including 4, 8, 16, and 32-channel devices. Key Features & Capabilities Dual Compression Support : Enables compatibility with both and the more efficient H.265 (HEVC) video compression standards. Broad SoC Compatibility v402r11 h264 h265 dvr nvr firmware download exclusive
Firmware is strictly coded for specific hardware configurations (4-channel, 8-channel, 16-channel, or 32-channel). Flashing an 8-channel firmware onto a 4-channel board will cause boot-looping.
Look for a Version ID similar to V4.02.R11.00001532 . The middle eight numbers (e.g., 00001532 ) are the unique hardware identifier required to find the correct download. How to Download and Install
| Device Type | Model Series | Download Link | | :--- | :--- | :--- | | | XVR-5xxx, DVR-4xxx | Download v402r11 DVR Firmware | | H.264/H.265 NVR | NVR-6xxx, NVR-8xxx (PoE) | Download v402r11 NVR Firmware | | Universal (Both) | Hybrid 2U/3U Chassis | Download v402r11 Universal | Go to > Advanced > Upgrade on your monitor interface
V402R11 H264 H265 DVR NVR Firmware Download Exclusive: Ultimate Upgrade Guide
Improves compatibility with IP cameras and CMS (Central Management System) software.
Insert the USB drive into a vacant USB port on the back or front panel of the DVR/NVR. Click and wait for the transmission and update
Connect your PC to the same local network (LAN) as the NVR/DVR using a wired Ethernet connection. Do not perform firmware updates over Wi-Fi.
Exclusive V402R11 H.264/H.265 DVR NVR Firmware Download Guide
: Dual-stream compression compatibility. It handles legacy H.264 (AVC) cameras and modern H.265 (HEVC) high-efficiency streams.