Sony Mobile has confirmed that the Android 4.4.3 KitKat firmware update has been released for the Xperia T2 Ultra (D5303, D5306). The update arrives in the form of build number 19.1.1.A.0.165 and has already started hitting a number of regions. See Sony’s changelog below which mainly includes bug fixes and improved stability.
Update: Sony has mistakenly flagged this as an Android 4.4.4 release, when it is in fact Android 4.4.3. We have been in touch with Sony who are now making the necessary corrections to the support pages.
Xperia T2 Ultra changelog (19.1.1.A.0.165)
– Android KitKat 4.4.4 bringing all the latest enhancements
– Optimized memory for smooth performance
– Stability improvements
– All of our latest bug fixes and improvements