Use the XMeye Device Manager software on a Windows computer connected to the same network. The software will detect the device. Upload the firmware file via the tool to start the update. Troubleshooting & Tips

Once you have downloaded the correct .bin package from your hardware vendor or an authorized repository like the XMEYE Device Support Index, use the local USB installation process: Step 1: Format the Storage Drive

Compatible with Hisilicon SoC-based recorders such as Hi3520, Hi3521, Hi3531, Hi3535, and Hi3536. How to Find the Correct Version

If the internal bootloader is entirely corrupted, you must perform hardware-level flashing:

: The XMeye Firmware Download Center provides a comprehensive list of firmware files based on Version IDs.

Right-click the screen, open the main menu, and go to . Select Local Upgrade , select your file, and click Start .

Older revisions (r8, r9) of v4 firmware had known backdoor vulnerabilities (CVE-2021-33044, CVE-2021-33045). Revision patches these. Therefore, updating to v403r11 is not just a feature upgrade—it’s a security imperative .

After the download is complete, transfer the .bin file to a FAT32 formatted USB drive. Insert it into the DVR/NVR, navigate to the upgrade menu, and select the file. The system will reboot automatically. Once back online, verify that your H.265 streams are rendering correctly, as this is the primary benefit of this specific firmware branch. Proper maintenance of your V403R11 device ensures your surveillance remains reliable when you need it most. Share public link