The Huawei E5172 is a classic, reliable 4G LTE CPE router used widely for home and office internet. Over time, routers require firmware updates to patch security vulnerabilities, fix connectivity bugs, and unlock network frequencies. To update this specific device, you need the official Huawei firmware upgrade tool.

Ensure your router and computer are plugged into a stable power source. A power outage during flashing can ruin the device.

Double-click the E5172_Updater_V1.00.000.exe file and select Start Updater .

In the tool interface, select your computer's network adapter card from the drop-down menu.