Extract Huawei E303 firmware 21.157.31.00.588.B757 on your computer
Install the firmware update file for Huawei E303 downloaded from Huaweiflashfiles.com
Follow the procedure for updating firmware that is given in Package.
Firmware Details:
Huawei Flash File | Size: 11.66 Mo
Version: 21.157.31.00.588.B757
Operator: AKOS Russia
Operating systems: Windows 7/8/10/XP/Vista
Huawei E303 Firmware Download