mobile

Hi, i need your help to upgrade rom Now my phone has boot unlock + s-off + superCID and has unroot + stock recovery 4.4.2. i try to upgrade rom by ota but failed. i'm a new htc fan, so i dont know much. Pls help me. i see an OTA zip file in Download, what i can do with that file? ofcause i dont want lost all data
Thank you Srr for my bad english

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