Sony recently released the Android 4.2.2 Jelly Bean software update, with build version 10.3.A.0.423, for the Xperia Z handset which runs Android 4.1.2 out of the box. The upgrade was first rolled out to users of LTE version of the device, bearing model number C6603, from Spain and Ukraine. The carrier customised versions are also available in Austria, Czech Republic and the Netherland, notes Xperia Blog.

Sony Xperia Z
Sony has released Android 4.2.2 Jelly Bean official update for the Xperia Z.

Followed by the official rollout, recognised XDA developer DooMLoRD updated his easy rooting toolkit for Xperia Z with support for rooting Android 4.2.2. The key feature of the toolkit is, it works on both locked and unlocked bootloaders. Along with rooting the device, the toolkit installs Busybox and SuperUser files. The developer has also shared an easy root method. Head over to the development thread to learn more about to the easy rooting toolkit.

Click here for our guide to install Android 4.2.2 Jelly Bean 10.3.A.0.423 official update on Xperia Z.

Xperia Z users who wish to root their devices running on Android 4.2.2 Jelly Bean may follow our step-by-step guide.

IBTimes UK reminds its readers that it will not be held liable for any damage to the device. Before following the root tutorial users are advised to ensure that their phones meet the below mentioned requirements.

Android 4.2.2 update
Screenshot of Android 4.2.2 Jelly Bean running on the Xperia Z.


1) Install USB Driver for Sony Xperia Z to transfer files between the Android device and the computer.

2) Enable USB Debugging Mode on the phone to connect it with the computer and use Android SDK with it. [Press Menu>> Settings>> Applications. From there navigate and click on Development option and then check the USB Debugging Mode.]

3) As the tutorial might wipe out all data of the phone, create a backup. If the device is having any custom recoveries such as ClockworkMod/TWRP already installed, then backup data using the recovery.

4) The battery of Xperia Z should have above 80% charge.

5) Increase the screen timeout on the phone to 10 minutes by navigating to Setting>> Display>> Sleep>> 10 mins.

6) Enable install from Unknown Sources by selecting Menu>>Settings>> Applications.

7) Rooting the handset will void manufacturer's warranty. However, users can reclaim the warranty by unrooting the device later.

8) The easy rooting toolkit works only on Sony Xperia Z running on Android 4.2.2 Jelly Bean with both locked and unlocked bootloader. Flashing this on any incorrect variant is likely to brick the device.

Steps to root Sony Xperia Z running on Android 4.2.2 Jelly Bean with locked/unlocked bootloader

Step-1: Download easy rooting toolkit for Sony Xperia Z to the computer

File name:

Step-2: Extract the download root zip, using winrar/7zip/winzip or any other extracting tool, to a folder

Step-3: Connect the Xperia Z to the computer using USB cable

Step-4: Go to the rooting toolkit extracted folder. Then run and execute the RUNME.bat file

Step-5: Read and follow the instruction on the screen to continue

Step-6: Finally reboot the phone after the script finishes execution

When the Xperia Z boots up, it should have been rooted successfully on Android 4.2.2 Jelly Bean official update. To verify the root status further, download and install Root Checker app from Google Play Store.

Those who are facing issue of device rebooting when remounting or system partition, click here for a fix released by recognised developer NUT.

Also read: Android 4.2.2 (10.3.1.A.0.244) new update rolling for Xperia Z [Manually Install]

[Source: XDA Developer]