The firmware is a specialized system update for high-quality DVRs and NVRs based on Hisilicon SoC hardware (such as Hi3520A, Hi3521, and Hi3536). This firmware version supports both H.264 and H.265 video compression standards, which can reduce video file sizes by up to 50% compared to older methods while maintaining high image quality. Essential Firmware Features
: The primary manufacturer for many of these boards offers direct downloads at Xiongmaitech Unifore Support v402r11 h264 h265 dvr nvr firmware download high quality
: A high-quality firmware update like V402R11 often comes with an improved user interface, making it easier for users to navigate through settings, configure the system, and monitor live feeds. : The primary manufacturer for many of these
Low-quality firmware often mishandles mixed codec environments, resulting in a "codec mismatch" error where the NVR records but fails to display live view. A premium firmware update will include a dynamic codec parser that identifies incoming stream types and adjusts the decoder ring buffers on the fly. configure the system
| Model Series | Resolution Support | Download Link | | :--- | :--- | :--- | | | 4MP / 5MP | Download High Quality FW (v4.02.R11) | | v402r11-8CH | 8MP (4K) H.265 | Download High Quality FW (v4.02.R11) | | v402r11-16CH | 12MP / H.265+ | Download High Quality FW (v4.02.R11) |