Huawei E173u-1 Unlock Firmware Link

Found on the sticker under the modem cap or on the device casing.

Download the official or generic E173u-1 firmware (e.g., version 11.126.85.00.209 or similar). Run the .exe file as an Administrator. Huawei E173u-1 Unlock Firmware

Use any GSM SIM card from any provider worldwide. Found on the sticker under the modem cap