). A prompt should appear asking for a "SIMLOCK Code" or "NCK". Enter your Unlock Code Step 4: Configure Your New Network
Most unlock firmware installers will automatically put the modem into flash mode. However, if yours does not: Huawei E173u-1 Unlock Firmware
Flashing firmware or calculating codes incorrectly can "brick" your modem, rendering it permanently unusable. The methods described below are for educational purposes. Always verify the compatibility of any firmware file with your specific hardware revision. Huawei E173u-1 Unlock Firmware