DooMLoRD’s original rooting toolkit could root a wide variety of Xperia devices, owing to the exploit ‘pref_event exploit‘. But, the exploit has been patched for the Sony Xperia Z (C6602/3) devices on the firmware 10.3.1.A.0.244/2.67. DooMLoRD has now found a way around of getting your Xperia Z on the same firmware rooted. Read on to find how you can get your Xperia Z on FW 10.3.1.A.0.244/2.67 rooted.

Disclaimer: This guide is intended as a helpful “how to”. dotTech and its writers are not responsible for any gain or loss (including but not limited to bricked devices) incurred as a result of following this guide. Root your device at your own risk. Rooting may void your warranty.

Requirements

This guide will help you to root your Sony Xperia Z (C6602/3) with firmware versions 10.3.1.A.0.244 / 10.3.1.A.2.67. Do not try this on any other device or firmware. Proceed at your own risk.

Before We Begin

• Download the Easy rooting toolkit by DooMLoRD.
• Download the kernel to be used for rooting (XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf ).
• Download the proper kernel for your device depending on your current firmware version (XperiaZ_C660X_KernelOnly_10.3.1.A.2.67.ftf, XperiaZ_C660X_KernelOnly_10.3.1.A.0.244_BE.ftf).
• Install the USB drivers for your device, if you haven’t already done so.
• Download and install Sony Flash Tool on your computer.
• Enable USB debugging in your Xperia Z.

How To Root Sony Xperia Z (FW 10.3.1.A.0.244 / 10.3.1.A.2.67)

• Connect your Xperia Z to your computer via a USB cable.
• Open the Sony Flash Tool which you had installed earlier on your computer.
• Now, here’s the main step for the way around. Just flash the rootable kernel (XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf) to your device using the tool.
• When the flashing process is over, disconnect the USB cable and reboot your device.
• Now, close the Flash Tool (IMPORTANT!!)
• Plugin the device to your computer again.
• Extract the file DooMLoRD_Easy-Rooting-Toolkit_v18_perf-event-exploit.zip to the location C:\ on your computer.
• Run the file runme_win.bat from the location you just extracted.
• After the rooting process is over, the phone will restart.
• Now, open your applications drawer and confirm that you now have the app ‘SuperSU’ installed on your device.
• Power off your device.
• Flash XperiaZ_C660X_KernelOnly_10.3.1.A.2.67.ftf or XperiaZ_C660X_KernelOnly_10.3.1.A.0.244_BE.ftf depending on the firmware you were first on.
• Disconnect the USB cable and power on your phone.
• Congrats! You have now successfully rooted your Sony Xperia Z!

Conclusion

Enjoy your rooted Xperia Z. Now you can go ahead and install root-only applications, enjoy advanced management permissions, and so on.

[via XDA]