How to Root Sony Xperia Z For locked & Unlocked Bootloaders

PLEASE READ THE COMPLETE POST BEFORE YOU TRY THIS!

Disclaimer/Warning!:
By editandroid.blogspot.com

users are reporting that NFC is broken after this root method (easy fix by goroh_kun here)

if u had an unlockable bootloader device, after using this method the device will be detected as LOCKED or unlock not possible!!! (to fix this use this fix)

Requirements:

• Xperia Z with stock Sony JB firmware (as of now tested on: 10.1.D.0.317, 10.1.D.0.322, 10.1.A.1.350)
• works on both locked/unlockable bootloaders!
• ADB drivers installed (use this file incase u need to install drivers)
  IMPORTANT: if you are using Windows 8 you will need to enable few things to allow driver installation
• Rooting Toolkit package provided below

How-to:

1. increase screen timeout to 10 mins: Settings -> Display -> Sleep -> 10 mins
2. enable USB debugging : Settings -> Developer options -> Enable and Settings -> Developer options -> USB Debugging (check it)
3. enable install from "unknown sources": Settings -> Security -> Unknown source (check it)
4. download the rooting toolkit package and save it on C:\
5. exit all adb requiring apps like PC Suite, PC Companion, Flashtool, etc as they will interfere with the rooting process
6. extract the ENTIRE contents of the package (and not just one file) to some directory on c:\
7. once you are ready with all the above connect phone to PC and execute "runme.bat" from the location where the entire contents are extracted
8. press enter to start the process, as the device is detected the toolkit will start executing steps one by one
9. keep watching the command prompt and wait for the following to come up "press the button to restore the data in your phone"
10. at this point look at the device screen, an app will start, select RESTORE data
11. now u will get "if Restoring data is complete," in the command prompt
12. at this point open Phone & dial *#*#7378423#*#*
13. select "Service tests" in your phone operation.
14. select "Display" (screen will turn white), the toolkit will now start executing some commands
15. now press power button to turn off screen wait for few seconds and press it power button again (repeat it a few time) till then keep observing the command prompt for outputs
16. u will see "transfer files to your phone part2", "installing busybox,su,Superuser,etc..." & finally "Cleaning up"
17. after that the device should automatically reboot
18. thats it device should now be rooted 

Troubleshooting:

if your device has unlockable bootloader then after applying this hack the bootloader status will turn "Bootloader unlock allowed: No"
in that case dont worry the users have reported that doing a repair via SEUS will flash back stock firmware and turn this status to "Bootloader unlock allowed: Yes" (the same might also be achieved by flashing a stock FTF using FlashTool <yet to be confirmed>)

ROOT WILL BE LOST BY DOING THE ABOVE AND YOUR INTERNAL STORAGE MAY GET WIPED!
SO DO A BACKUP OF APPS & INTERNAL STORAGE ON AN EXTERNAL SDCARD/PC

FAQ:

1. will this wipe /data
   NO. since we are not unlocking the bootloader the /data partition will not be wiped
2. do i need to unlock bootloader for this to work?
   NO.
3. will i lose Bravia Engine 2 ?
   NO.
4. does rooting without unlocking the bootloader still voids warranty.
   Not if you get back on clean Stock ROM

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