Thread: upgrading OS
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Old 10-20-2009, 08:16 PM   #1
lilshorty
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Join Date: Oct 2009
Model: 8900
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Posts: 33
Default upgrading OS

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ok. i am so lost here. i see ppl talking about upgrading OS and downgrading OS

1. wat is an OS?
2. does upgrading it make any difference?
3. how do i know which OS i have on my phone?
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