Huawei B311-221 Firmware Official

If the update page is missing, your router is carrier-locked. You may need to unlock it first (see Part 6).

Huawei periodically releases firmware updates to improve performance, fix vulnerabilities, or add features (like better VPN passthrough or IPv6 support). Huawei B311-221 Firmware

Modified by community developers (e.g., from “Huawei Modem Unlock” forums). Adds: If the update page is missing, your router is carrier-locked