Flashing custom "unlock firmware" is a legacy hacking technique best reserved for hardware enthusiasts who understand the risks of corrupting the device's bootloader. Given the decline of 3G infrastructure, extensive modification of this hardware is rarely worth the risk of damaging the device.
If you are following the code method, you'll need a calculator. Several tools can generate this code: Huawei E173u-1 Unlock Firmware
Follow these instructions carefully to update your firmware and unlock your USB dongle. Step 1: Generate Your Flash Code Flashing custom "unlock firmware" is a legacy hacking
Run the downloaded firmware updater executable file as an Administrator. Accept the data warning terms. Huawei E173u-1 Unlock Firmware
Remove the SIM card and MicroSD card from your Huawei E173u-1.
