The long-awaited Jelly Bean upgrade on T-Mobile USA Samsung Galaxy S2 (SGH-T989) is now officially rolling out through Kies software update. This is packed in Android 4.1.2 and brings features such as Google Now, Smart Stay, Pop-up Play, Voice recognition, Touchwiz Nature UX and a lot better performance enhancements.
Again, this update is only available using Samsung Kies utility tool, where users needs to download and install the latest Samsung Kies on their Windows or MAC computers, connect the Galaxy S2 device and simply fire up Kies to get the update.
source:
support.t-mobile.com
