Uploaded November 2012 | Updated September 2026, 1 day ago

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Step by step Install and root + download link: mobilevideochannel.blogspot.com/2014/06/install-jelly-bean-412-official-galaxy.html
This version with root (review): youtu.be/CFJeME0rrHs
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download this single file that contains everything, and read the post above: wuala.com/dinamicamedia/Galaxy_S2/JellyBeanStock_SGS2.zip
(seethe post for instructions)
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Alternative: Install this version. No odin mode: youtu.be/VGcGduRY8f8