If you are looking to install this specific firmware version, the general process follows these steps: :
The upgrade process itself was efficient, with clear instructions provided by Tenda's support team. I was able to download the latest firmware and upload it to the device without any issues. The upgrade took only a few minutes to complete, and the device rebooted automatically.
Ensure your router is plugged into a stable power source.
: Always connect your computer directly to the router's LAN port with an Ethernet cable. Upgrading over Wi-Fi is risky and can lead to device failure. Check Hardware Compatibility