Unlike older USB dongles that used a 8 or 16-digit NCK code, the B311s-220 uses a combination of:
2. Using Unlock Software (DC-Unlocker/Huawei Modem Unlocker) huawei b311s-220 unlock firmware
Third-party unlocking services and software Unlike older USB dongles that used a 8
: This is the most common and safest method. You provide your device's IMEI to a service provider who generates a unique code. You then insert a non-compatible SIM card and enter this code in the web management page ( http://192.168.8.1 ). huawei b311s-220 unlock firmware