If you do not have an account, the recommended "official" story ends with contacting your Internet Service Provider (ISP) directly. They are responsible for managing and providing the correct carrier-specific firmware for your region. How the Community Handles It
Getting firmware for the Huawei EchoLife HG8546M is notoriously difficult because Huawei typically restricts these downloads to registered enterprise partners Internet Service Providers (ISPs) Huawei Technical Support Official Download Route The official firmware files are hosted on the Huawei Enterprise Support Portal The Catch: huawei echolife hg8546m firmware download link
If you encounter any issues during the firmware upgrade process, try: If you do not have an account, the