Extract Huawei E1220s-2 Firmware 21.180.07.00.00 on your computer
Install the Firmware update file for Huawei E1220s-2 downloaded from Huaweiflashfiles.com
Follow the procedure for updating Firmware that is given in Package.

Huawei Flash File | Size: 14.71 MB
Version: 21.180.07.00.00
Operator: Universal
Operating systems: Windows 7/8/10/XP/Vista
Huawei E1220s-2 Firmware Download