If you cannot find the firmware through official channels, contact the manufacturer’s customer support or technical support team for guidance.
Yes, v403r11 includes drivers for H.265+, but you must enable it per channel. Note that H.265+ may not be readable by third-party VMS software. v403r11 h264 h265 dvr nvr firmware download hot work
Would you like help identifying the actual manufacturer based on a photo of the device’s system info screen? If you cannot find the firmware through official
: Offers downloads specifically for V4.02.R11 firmware compatible with Hisilicon SoC chips like Hi3520D and Hi3521. v403r11 includes drivers for H.265+