According to the latest report of the French Sony Xperia Z Mobile 4G version (C6603) has started the new FW update 10.1.1.A.1.25 code, this version is still based on Android 4.1.2 but bring many improvements in performance, features color calibration screen, navigation keys turn black instead of gray, add optional lights status messages .. etc.
This concern is clearly not the camera which can be improved or not after what response "not good" of previous users. Please share with us your comments after updating the machine offline.
Thanks Ryan Skotw about this picture!