Xt910 - Updating from 4.0.4 to 4.1.2

Discussion in 'Droid RAZR Support' started by Gudget, Jan 22, 2014.

  1. Gudget
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    Gudget New Member

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    Ok so I'm new to all of this,
    I have a XT910.
    I'm running 673.94.328.XT910.PSHAsiaRetail.en.03
    I installed it way back when I got my phone because I need Hebrew on my system.
    Anyways,
    I want to update to 4.1.2 because the battery life on this ROM is killing me.
    So a few questions:
    1. Will updating really improve my battery life?
    2. How do I do it without bricking my phone? My current ROM isn't on any of the main topics about updating to JB. And Is there a good JB ROM which supports Hebrew?
    3. I don't have an SD-card and I somehow installed my ROM without it, don't even remember how. Need the method to do it again with RSD Lite.

    Thanks in advance,
    would appreciate it if you guys saved my ass.
     
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