💡 If your device does not boot, try a reset to factory defaults via the OSD or web interface after the upgrade to clear old configuration remnants.
The firmware is a common update for H.264 and H.265 DVRs and NVRs based on XMeye (Xiongmai) hardware. To download the correct version, you must identify your device's unique 8-digit Version ID or "Key Number," as installing the wrong file can permanently damage (brick) the recorder. 1. Identify Your Version ID Before downloading, locate your current firmware version:
Before attempting a firmware flash, you must verify that your exact hardware model supports the V402R11 baseline. Installing mismatched firmware can permanently brick your device. Device Type Channel Capacity Supported Video Inputs Primary OEM Chipset 4-Ch / 8-Ch / 16-Ch TVI, AHD, CVI, CVBS, IP HiSilicon / Novatek Network NVR 8-Ch / 16-Ch / 32-Ch Pure IP Cameras (ONVIF) HiSilicon / ARM Cortex How to Check Your Current Firmware Version
If you want to ensure a smooth update process, please let me know:
Hi3520A, Hi3520D, Hi3521, Hi3521A, Hi3531, Hi3531A, Hi3535, and Hi3536. v402r11 h264 h265 dvr nvr firmware download exclusive
Go to Configuration > System > Maintenance > Upgrade .
Fixes issues where your app (like XMeye or Danale) cannot connect to your cameras.
Using the wrong firmware file can permanently brick your device . You must match the "System ID" (8 digits) exactly. Go to your DVR/NVR Main Menu . Navigate to System Info > Version .
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. 💡 If your device does not boot, try
: To find the right "exclusive" download, users must navigate to System Info > Version and look for an 8-digit code (e.g., 00031095 ). These digits are the "genetic code" of the hardware, indicating the specific vendor and platform version.
Look for the "System Version" line. It will look something like: V4.02.R11.00031095.12001 . The Secret of the 8 Digits
Place the extracted firmware file in the root directory of the USB. Initiate Update: Insert the USB into the recorder, go to Main Menu > Settings > System > Upgrade , and select the file.
In the example V4.02.R11.00031095.12001 , the key to finding the correct update is the eight digits: . This number represents the specific motherboard or firmware variant. Device Type Channel Capacity Supported Video Inputs Primary
There are two primary methods to flash the V402R11 firmware onto your NVR or DVR. Method 1: Local Upgrade via USB Flash Drive (Safest)
The safety and stability of your surveillance system depend on using the right firmware. Do not download firmware from random websites. Here’s how to find the official source.
The update overhauls the disk overwrite logic. It prevents indexing corruption errors on surveillance-grade hard drives (such as WD Purple or Seagate SkyHawk) when the storage reaches maximum capacity and begins looping over old footage. Compatibility Matrix
