If you are prompted for a password during the upgrade or login: : admin Password : (Leave blank), 123456 , or 888888 .
The next five digits ( 31095 ) match the exact silicon board layout, processing chip (SoC), and video input matrix.
V4.02.R11 . 00001532 . 10010 . 1301 └──┬───┘ └───┬────┘ └────────┘ Firmware Hardware Tail Strings Baseline ID Match (Region/OEM) V4.02.r11 H.264 H.265 Dvr Nvr Firmware Download
Manual installations require uncorrupted local transfers. Follow these exact steps to update your recorder:
Perform the firmware update to a newer patch if available. If Xiongmaitech no longer supports your specific V4.02.R11 variant (common for 2016-2018 models), isolate the DVR on a Virtual Local Area Network (VLAN) and firewall it from direct internet access, forcing it to use only outbound peer-to-peer (P2P) connections. If you are prompted for a password during
Never flash firmware based solely on the version number. Installing firmware meant for a different mainboard model (even if it says V4.02.r11) can permanently brick your device. How to Find Your Exact System Information
Navigate to Main Menu > Advanced > Upgrade . Select Local Upgrade . The system will scan the USB drive and display the V4.02.r11 file. Click Start or Upgrade . 00001532
While manufacturers rarely release detailed changelogs for generic OEM firmware, the .r11 designation usually implies the 11th revision of the version 4.02 branch. This typically addresses: