Huawei B311-221 Firmware Hot!

: Enhanced firewall settings, wireless security protocols (WPA-PSK/WPA2-PSK), and fixed vulnerabilities (such as CVE-2017-6951).

If the update page is missing, your router is carrier-locked. You may need to unlock it first (see Part 6). Huawei B311-221 Firmware

Toggle on to allow the router to update itself during idle times, or choose a manual update. Hardware Specifications (WL5B311M Ver.A) : Enhanced firewall settings

: Unplugging the router during an update can "brick" the device. wireless security protocols (WPA-PSK/WPA2-PSK)

Unlocking may void your warranty but is legal in most jurisdictions.