READ!!!!
you dont need to back up your data!!
just read this very easy step:))
to root your xperia z 4.2.2 .244
first download the flash tool [ Ссылка ]
2.Step Download Xperia Z C660X 10.3.A.0.423 Kernel ([ Ссылка ])
Step-3 Download Xperia Z rooting toolkit and extract it into a new folder on the computerhttp://d-h.st/1Gp DooMLoRD_Easy-Rooting v 18
Step-4: Xperia Z C660X 10.3.1.A.0.244 kernel ([ Ссылка ])
Step-5: Launch the flashtool by double clicking on the flashtool icon
Note: Those who are first timers, navigate to C:/Flashtool/drivers folder to install Flashtool-drivers. Select and check the box of the device model and Flashmode Drivers such as fast boot,xperia z driver etc
Step-6: Connect the Xperia Z to the computer using USB cable. Ensure all drivers are installed properly
Step-7: Copy the XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf and XperiaZ_C660X_KernelOnly_10.3.1.A.0.244_BE.ftf to the flashtool/firmwares folder on the computer
Step-8: On the flashtool, click on the lighting icon and click flashmode then OK
Step-9: A new windows should appear now. At the right sidebar, check Data, Cache, App slog boxes if you wish to wipe the device before flashing. Uncheck all the boxes to remain the data of the device
Step-10: At source folder, browse and choose XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf in the flashtool/firmwares
Step-11: Press flash button to start flashing
Step-12: Follow the prompt instructions
First to unplug the USB cable from the phone to disconnect it from the computer
Power off the phone
Third, enter to Flash Mode on the phone by pressing and holding Volume Down button while connecting the device to the computer using USB cable. The display of the device will still remain blank
Step-13: Monitor the Flashtool on the computer. It should continue to run and flash the XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf
Step-14: Wait for some time until the installation process is completed which will be indicated by a message in flashtool saying Flashing finished
Step-15: Reboot the phone
Step-16: Connect the phone to the computer in USB Debugging Mode
Step-17: On the computer, close the flashtool
Step-18: Double click the runme_file extracted from the rooting toolkit (in step-2). This will root the device
Step-19: Once rooting is completed, repeat the similar procedure from step-6 to step-15, using the XperiaZ_C660X_KernelOnly_10.3.1.A.0.244_BE.ftf. This will flash back the stock 10.3.1.A.0.244 kernel to the device
now you are super user :)
