Extract Huawei E3251s Firmware 21.140.05.00.532 on your computer
Install the Firmware update file for Huawei E3251s downloaded from Huaweiflashfiles.com
Follow the procedure for updating Firmware that is given in Package.

Huawei Flash File | Size: 14.37 MB
Version: 21.140.05.00.532
Operator:Srbija Serbia
Operating systems: Windows 7/8/10/XP/Vista
Huawei E3251s Firmware Download