Xperia Z1 and Z Ultra Get New Android 4.3 Performance Update for Display, Wi-Fi and Bluetooth Issues

Sony updated Xperia Z1 and Xperia Z Ultra to Android 4.3 back in December. The new 14.2.A.1.136 stock firmware build is part of Sony's maintenance update which is only accessible via Sony's PC Companion and Mac Bridge apps. The Over-The-Air (OTA) update is still inaccessible for both the devices, as Sony is rolling out the new update in phases. The Android 4.3 bug-fix rollout was announced for ...