Extract Huawei E303u-1 firmware 11.126.29.00.533.B427 on your computer
Install the firmware update file for Huawei E303u-1 downloaded from Huaweiflashfiles.com
Follow the procedure for updating firmware that is given in Package.

Huawei Flash File | Size: 7.09 Mo
Version: 11.126.29.00.533.B427
Operator: Etisalat Nigeria
Operating systems: Windows 7/8/10/XP/Vista
Huawei E303u-1 Firmware Download