Although Google has not been formally introduced, but the next Android version is Android 4.3 has been leaked on the model Galaxy S4 (Google Play Edition version), do not ignore this opportunity on the XDA developers have no right to arms rom cook job processing for other models including the Xperia Z.
Author cook Android 4.3 ROM for Xperia Z is Taylor_Swift, this rom for bootloader unlocked Xperia Z. Machine boot but it seems there are too many errors occur, the topic is temporarily closed. Hopefully a few days to fix the error when the user is finished Xperia Z will have a more complete.
- How to have root access?
> Download this flashable zip; http://download.chainfire.eu/339/SuperSU/UPDATE-SuperSU-v1.41.zip - Thanks to ChainFire
> Copy to internal storage
> Boot into recovery and flash the zip
> Reboot System
> Profit?!
- Chrome will not open (Working out alternative now)
> After you are rooted download a root explorer like ES
> Remove Chrome from System/App
> Reinstall via PlayStore
Source: XperiaBlog, XDA