If the router is bricked or won’t boot, use TFTP:
Download the last known firmware from archived ISP pages, then consider buying a modern VDSL modem (like a DrayTek Vigor or TP-Link Archer) for better security. Huawei Hg658 V2 Firmware Download
Official firmware for Huawei home routers is rarely hosted directly on the Huawei consumer website. You must look for the version specific to your hardware. If the router is bricked or won’t boot,
HG658c V2 Firmware Release Notes | PDF | World Wide Web - Scribd Huawei Hg658 V2 Firmware Download
Consider upgrading to a newer router. The HG658 series is older (802.11n, not dual-band), and modern routers offer better security and performance.
Fixes known connection drops and system crashes.