: Some modified versions of this firmware add detailed signal metrics like RSSI to help with antenna alignment. Technical Specifications (Huawei B312-926) Network Standard 4G LTE Cat4 (3GPP Release 9) Max Speeds 150 Mbps Download / 50 Mbps Upload Wi-Fi 802.11b/g/n (2.4 GHz), up to 300 Mbps Chipset Huawei Balong Ports 1 Gigabit WAN/LAN Port, 1 Nano-SIM Slot External Antenna 1 x SMA-Female extension port How to Update the Firmware
Using the wrong firmware version (e.g., for B312-939 or B315) will permanently brick your device. Double-check the filename.
This firmware closes several known vulnerabilities in the Huawei CPE web server, including the infamous “information disclosure” bug that exposed IMEI and ICCID data unauthenticated.