The firmware is a common software version for DVRs and NVRs based on Hisilicon SoC (System on Chip) hardware, such as the Hi3520, Hi3521, and Hi3536 series. Because this version is used by many generic or "white-label" Chinese manufacturers (like XMeye/Xiongmai), identifying the correct "Key Number" or "Hardware ID" is critical before downloading to avoid bricking your device. How to Find Your Specific Firmware Version
Always confirm the hardware revision printed on your DVR/NVR’s motherboard (e.g., V402R11 V2.0 vs V3.0). Version 2.0 often requires H.264-only builds; version 3.0 supports hybrid.
Some notable features of the V402R11 firmware include:
Before downloading, you verify your device's "System Info" to match the specific Hardware ID (e.g., AHB7004T-LM). Using the wrong hardware file can "brick" your device. Prepare the USB: Format a USB drive (under 32GB) to FAT32 .
: Many of these devices use the XMeye platform; official software and version IDs can be checked through Enster's XMeye support pages . How to Update Your DVR/NVR