Upgrade from 2.2.1 to 2.3.340???

BETaveras

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Jan 10, 2011
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I don't even know where to begin, i've got some knowledge on this topic but I just dont know how to upgrade. I'm running Gummyjar stock rom and want to install rubiX Focused 1.9.5, but i need to upgrade to 2.3.340! Help me please!!
 
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