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The HG8546M is a dual-mode (GPON/EPON) gateway with four Ethernet ports, two voice ports (POTS), and dual-band Wi-Fi (2.4 GHz only in basic variants; some support 5 GHz). Unlike consumer routers, its firmware is heavily customized by ISPs (e.g., Vodafone, Telmex, Claro, Proximus). Consequently, ; each ISP releases builds tailored to their infrastructure. Huawei Echolife Hg8546m Firmware Download