Huawei Hg658 V2 Custom Firmware [hot] -

Only if bootloader is corrupted or serial unavailable.

The Huawei HG658 V2 is a widely distributed VDSL2 router, frequently supplied by major internet service providers (ISPs) around the globe. While the hardware itself is highly capable, the stock firmware provided by ISPs is notoriously restrictive. Network providers often lock down the user interface, disable advanced networking features, and hide critical configuration settings to reduce support tickets.

Absolute control over the OS, package manager access (opkg), powerful firewall capabilities, and ad-blocking utilities.

If you can't (or don't want to) mess with custom firmware, putting the HG658 V2 into bridge mode is the next best thing. In bridge mode, the device stops acting as a router (performing NAT, DHCP, etc.) and simply passes the internet connection through to a more capable router of your choice. This allows you to use a powerful third-party router (perhaps running OpenWrt or DD-WRT) while still using the HG658 V2 as a modem.