Hello Fandroids, this is a step by step tutorial to show Rooting and Unrooting of Sony Xperia Z, Z1 & Z Ultra on all variants. This tutorial show you a safe method to root and unroot your Sony Xperia Z, Z1 & Z Ultra without a data loss and without harming your device unless you will do something wrong during following my instructions. Dont use rooting to pirate applications and games, only use it for productive work. I am showing you this tutorial, because lot of people are worried about Sony Xperia Z, Z1 & Z Ultra software keys and they want to hide them to take a full advantage of Sony Xperia Z, Z1 & Z Ultra display while playing games and watching movies on their Sony Xperia Z, Z1 & Z Ultra . However rooting helps you to overclock CPU speed as well as many other things. But to keep it simple stay with the basics.
PLEASE NOTE: IF YOU HAVE UPDATED YOUR DEVICE TO FIRMWARE (14.1.G.2.257) THIS METHOD IS NOT GOING TO WORK AND TO MAKE IT WORK YOU HAVE TO GO BACK TO PREVIOUS FIRMWARE.
Watch this video to know how to go back to stock: http://www.youtube.com/watch?v=j4gm9VeQCHA
HOW TO ROOT
Before starting rooting process you don't have to make a backup of your device because this will not wipe a data from your phone just simply follow below instruction to get root access on your phone. Lot of people think that rooting Z1 breaks it camera and they wouldn't able to use its camera after rooting. These rumors are pointless because its only going to break if you people will try to unlock bootloader and this rooting guide will not tell you how to unlock a boot loader so its a safe rooting guide for Z1.
Download a VRoot Tool Kit to Root your Sony Xperia Z, Z1 & Z Ultra and install it on your PC from a below link
Now you have to get in to your phone setting like a below picture (Pictures shown in rooting method is of LG G2 but you have to do the same things to root your Sony Xperia Z, Z1 & Z Ultra because these devices can be easily rooted from vroot tool kit. So dont get hesitate by looking at the G2 pictures below you have to do same thing on your Sony Xperia Z, Z1 & Z Ultra.
Press About Phone and you will see a window like a below picture
Now here you have to hit Build Number may be 5 or 6 times repeatedly because it will give us developer options like below picture in settings
Now enter in to developer options and Enable USB Debugging like a Below Picture
Now open up a Vtool Kit that you have installed in Step 1 in your PC and it will look like a below picture
Here all the things are written in Chinese, but dont get worried just simply connect your phone with your PC using a micro usb cable which comes up with the phone and you will see a window like below picture on your phone and you have to press ok here (some time it doesnt appear on Sony devices so dont get worried.
Vroot Kit will show you your Sony Xperia Z, Z1 & Z Ultra logo like a below picture in it when you press ok in your phone. It will take some time to show your phone logo because its going to install all the neccessary drivers into your pc or laptop. So dont panic unless your phone logo appears in vroot kit.
Now just simply click root and enjoy a full root on your device
Now once it rooted your phone get restarted and you will see Super Su in your device like a below picture that means you have successfully rooted your Sony Xperia Z, Z1 & Z Ultra
So guys now you have super user installed on your device and you can download GMD Auto Hide Soft Keys from play store to hide your software keys like a below picture,you just have to grant access to super su once you open GMD and then you can easily hide your software keys.
HOW TO UNROOT
Download Sony Software Update Tool Kit from Sony site from a below Link and install it on your computer and it will look like a below picture on your pc when you open it
Now here you have to tick I hereby accept the license agreement by reading out the 4 points written on this software make sure you read all these points before doing software upgrade and then press start and you will see a window like a below picture and here you have to pick your device
Now after selecting your device simply press next and you will see a window like below picture
Now here follow on screen instructions in this software and go back to factory settings on your phone to loose root. After resetting your device using this tool you will loose root and no longer traceable to any one :)
Video Tutorial: http://www.youtube.com/watch?v=K52an5pOyFw