With Huawei there can be a limit on the amount of times you can enter the unlock code, so please ensure you accurately enter the unlock code we send you.
Extract it and copy IMEI and router model number.Unzip the tool package and install it on your PC by following the on-screen instructions. Now you need to download Huawei Modem Unlocker tool from above links to your PC.
Take a standard USB cable and connect the device with PC.
Huawei Unlock Code Calculator Free is an online tool where you can generate your Huawei Device Unlock Codes, simply enter your IMEI below to get your Free Unlock Code. Firstly, download and install proper Huawei USB Drivers (Universal drivers) on your PC.