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Download Android Jelly Bean 4.2.1 stock firmware for Umi X2 smartphone



Download Android Jelly Bean 4.2.1 stock firmware for Umi XII smartphone from here or from here.



Archive: Umi X2 4.2.1 FW
Image: signed_2721_x2_miui
Archive file size: 354 MB
Platform: MediaTek MT6589
Build number: X2-user 4.2.1 Limh.Me-MiuiV5 3.8.23 release-keys


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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