Extract Huawei E3372s-153 Firmware 21.286.03.00.55 on your computer
Install the Firmware update file for Huawei E3372s-153 downloaded from Huaweiflashfiles.com
Follow the procedure for updating Firmware that is given in Package.

Huawei Flash File | Size: 36.81 MB
Version: 21.286.03.00.55
Operator:Hungary
Operating systems: Windows 7/8/10/XP/Vista
Huawei E3372s-153 Firmware Download