Download Android Jelly Bean 4.2.2 stock firmware for Iusai US12 smartphone

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Download Android Jelly Bean 4.2.2 stock firmware for Iusai US12 smartphone from here or from here.

Archive: US12_20140306_150134_[0306_1622]_publish
Archive file size: 326 MB
Platform: Mediatek MT6572

Project: kphone72_wet_jb3
Config_version: V1.1.1 

Caution
Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.

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