Sony is following up the recently launched 10.1.1.A.1.253 firmware for the Xperia Z and Xperia ZL with another update. Firmware build 10.1.1.A.1.307 has just been certified for the Xperia Z (C6602, C6603) and Xperia ZL (C6502, C6503, C6506) on the PTCRB website.
The ‘253’ Android 4.1.2 Jelly bean update brought a number of improvements including the white balance app for the Xperia Z, UI changes and camera/performance enhancements. We expect the latest ‘307’ update to bring some bug fixes and could be one of the last updates before we see Android 4.2.2 make an appearance.
Thanks Max!