Extract Huawei B612s-25d firmware 11.192.03.00.234 on your computer
Install the firmware update file for Huawei B612s-25d downloaded from Huaweiflashfiles.com
Follow the procedure for updating firmware that is given in Package.

Huawei Flash File | Size: 43.61 Mo
Version: 11.192.03.00.234
Operator: MTN Iran
Operating systems: Windows 7/8/10/XP/Vista
Huawei B612s-25d Firmware Download