If you purchased a carrier-branded version, you may be permanently restricted to that carrier's firmware updates, which can block "universal" versions.
suggest that inserting a different SIM or changing APN settings sometimes triggers missed updates. Third-Party Repositories: While sites like EasyFirmware huawei h122373 firmware 10051h612sp1c00 universal free
The system will automatically detect and prompt you to download the latest available version for your specific region and ISP. Huawei AI Life App Connect your phone to the router's Wi-Fi network. HUAWEI AI Life App and select your device. If you purchased a carrier-branded version, you may