Firmware - Huawei B311s-220 Unlock

Unlock firmware is not an official Huawei release. It is either:

Huawei B311s-220 Unlock Firmware: The Ultimate Guide to Network Freedom huawei b311s-220 unlock firmware

Select your modified firmware file (ensure it explicitly states compatibility with the variant). Confirm the target COM port matches your device. Press Start to begin the firmware overwrite. Unlock firmware is not an official Huawei release