Huawei - Modem Flash Tool

If your firmware change includes a new user interface, always flash the firmware first, let the device reboot, and then flash the WebUI file.

D. Using AT commands (non‑destructive configuration) huawei modem flash tool

or touch your computer during this stage. The status bar will progress, and the lights on your modem may turn off or change color. If your firmware change includes a new user

What is the of your Huawei modem (e.g., E3372, B525, HG8145V5)? always flash the firmware first

If you'd like to proceed with a specific device, let me know: What is the ? (e.g., E5573, B315, E3372)