Extract Huawei E397u-53 Firmware 11.337.35.00.644 on your computer
Install the Firmware update file for Huawei E397u-53 downloaded from Huaweiflashfiles.com
Follow the procedure for updating Firmware that is given in Package.

Huawei Flash File | Size: 15.53 MB
Version: 11.337.35.00.644
Operator:USCC USA
Operating systems: Windows 7/8/10/XP/Vista
Huawei E397u-53 Firmware Download