If you have plans in advance to root Xperia T then Universal root tool is discovered:http://www.feelandroid.com/2012/09/universal-root-tool-for-xperia-nxt-devices-including-xperia-t/
Anonymous, 04 Sep 2012Well if it has pentaband it can be used in T-Mobile right?Yes. But not its LTE functionality.
interesting phone!!! but,will sony ever release a qwerty keypad phone?