Extract Huawei E3251s-2 Firmware 21.146.19.00.141 on your computer
Install the Firmware update file for Huawei E3251s-2 downloaded from Huaweiflashfiles.com
Follow the procedure for updating Firmware that is given in Package.

Huawei Flash File | Size: 14.58 MB
Version: 21.146.19.00.141
Operator:Orange Romania
Operating systems: Windows 7/8/10/XP/Vista
Huawei E3251s-2 Firmware Download