Leaked Jelly Bean update for T-Mobile's Samsung Galaxy S III
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
A leaked version of Android 4.1.1 is available for the T-Mobile version of the Samsung Galaxy S III
The leaked update for the T-Mobile branded Samsung seems to be essentially the same as the leaked update for the GT-i9300. While the rollout of Android 4.1.1 for the International Samsung Galaxy S III seems to be set for August 29th, could the appearance of the leak for the SGH-T999 point to a similar time period for the update in the States?
For those interested in living dangerously or those who can't wait out a week or so, head over to the sourcelink for instructions on how to install the leaked version of Android 4.1.1 on your T-Mobile Samsung Galaxy S III.
source: XDA via Phandroid
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