Connect your computer to the router via an Ethernet cable. Never attempt a firmware upgrade over Wi-Fi.

Updates and settings can be managed through the standard web interface (typically 192.168.1.1 or 192.168.100.1 ) or the Huawei AI Life App . Installation Considerations

Most ISPs push updates automatically, but some maintain archives. Log into your ISP account and search for "ONT firmware" or "router updates."

You are likely trying to flash generic Huawei firmware onto an ISP-customized router, or the file is corrupted.