Extract Huawei B933 firmware V100R001C80B108SP01 on your computer
Install the firmware update file for Huawei B933 downloaded from Huaweiflashfiles.com
Follow the procedure for updating firmware that is given in Package.

Huawei Flash File | Size: 8.12 Mo
Version: V100R001C80B108SP01
Operator: Claro Brazil
Operating systems: Windows 7/8/10/XP/Vista
Huawei B933 Firmware Download