This means the Hardware ID in the V402R11 file does not match your motherboard. Do not force the update.
Here is the useful content regarding this firmware, including download sources, installation guides, and critical compatibility warnings.
Dual-stream compatibility featuring standard H.264 (AVC) and high-efficiency H.265 (HEVC) codecs. v402r11 h264 h265 dvr nvr firmware download exclusive
Note: Check the sticker underneath your recorder chassis or navigate to the System -> Information menu on your local GUI to confirm your current hardware base matches the V402R11 release requirements. Step-by-Step Firmware Installation Guide
Cause: Modified security policies in V402R11 blocking older third-party ONVIF camera authentication tokens. This means the Hardware ID in the V402R11
: If the DVR/NVR shows connectivity issues after an update, check your network configuration and ensure that the device's firmware supports your network setup.
Select the option. The system will auto-scan the USB drive and display the V402R11 firmware file. Click Upgrade . Dual-stream compatibility featuring standard H
We can proceed to explore further specific deployment parameters or network settings for this upgrade. Here are a few ways we can continue:
Re-verify your Mainboard ID version string against the file metadata.