The Huawei E173u-1 is a 3G-only device. In regions where 3G is being phased out (Europe, parts of Asia), flashing unlock firmware is only useful if:
: Upgraded firmware fixes bugs and improves connection stability. Technical Specifications of Huawei E173u-1 Huawei E173u-1 Unlock Firmware
Is your Huawei E173u-1 3G USB dongle locked to a specific network? Learn how to use unlock firmware, generate bootloader codes, and perform a permanent SIM unlock. Step-by-step guide for Windows. The Huawei E173u-1 is a 3G-only device
Always be sure to carefully follow the instructions for your chosen method, back up any important data, and proceed at your own risk. By unlocking your Huawei E173u-1, you can free it from carrier restrictions and use it as a truly independent, multi-purpose connectivity tool. Learn how to use unlock firmware, generate bootloader
If your computer still launches the old carrier software after flashing, you should flash a generic dashboard like . The installation process is identical to the firmware flash but updates the visual software stored inside the virtual CD-ROM partition of the stick. Troubleshooting Common Flashing Issues
Use an online Huawei calculator tool or an offline tool (like v4mpire unlocker).
Locate the printed on the sticker underneath the modem casing.