Earlier last month Sony released the latest version of the Android 4.4.2 KitKat update for the Xperia Z series device with build number 10.5.A.0.230 for Xperia Z, Xperiz ZL, Xperia ZR and Tablet Z. The problem soon came when many Xperia users who upgraded to Android 4.4.2 10.5.A.0.230 build reported to have quick battery drain issues as well overheating due to too much load placed onto the CPU.

Personally I have struggled to keep the phone (My Xperia ZR) on throughout the day as the battery drain has been absolutely horrible, by lunch time I am normally left with only 40% battery and the phone tends to heat up in my pocket. Sony has now acknowledged the battery performance issue and notes that they have identified the root cause of the battery issue that is related to latest version of Google Play services 4.4.52.