Sony has started rolling out firmware update for the Xperia Z, ZL and ZR smartphones. This update is based upon Android 4.3 and brings with it several improvements to Bluetooth connectivity, battery, YouTube app and other software.
firmware rolling for #Xperia Z, ZL & ZR (Tablet Z eta next week) – brings BT connectivity, battery, YouTube app improvements & more— Sony Xperia News (@SonyMobileNews) February 7, 2014
The update will soon be available for the Xperia Tablet Z as well, with the ETA to be announced some time next week.
i m using xperia zr nd i did'nt get d latest update of kitkat version
Got it on my Z couple of days ago, it is killing my battery real quick...
How to roll back this shiny update? Android OS eats 46% of battery. Hardly can survive a day with it.