Android KitKat Updation Available for Sony Xperia Z, Xperia ZL, Xperia ZR & Xperia Tablet Z! ITVoice News: Sony Xperia Z, Xperia ZL, Xperia ZR and Xperia Tablet Z can now update their operating system to Android 4.4.4 KitKat. Sony Mobile’s global PR team’s twitter account made an September 11, 2014 News