: Press the Start button. Monitor the signal bars on the router; once all five bars are lit, the process is complete. Restart : Close the updater and restart the router. 3. Local Web Interface Method (Recommended)
: Select Local Update , upload your firmware file, and wait approximately four minutes for the installation to finish. Important Safety Tips
If that works for you, please confirm, and I’ll provide a full outline with steps, warnings, and references to official sources.
You can download the Huawei E5172 firmware upgrade tool from the following sources:
Power on the router while holding the button (if required by your specific sub-model).