[Sony Xperia S, Acro S, Ion] abcdjdj:
Hello Everyone,

This guide will tell you how to root and install CWM on .55 Firmware. This method 100% works ( I have tested it myself on locked bootloader ) As I did not find any guide to do this - just some posts, I am creating this guide. For now, THIS IS ONLY FOR XPERIA S LT26i & XPERIA SL LT26ii Just follow these steps and you should be good to go : -

FOR UNLOCKED BOOTLOADER, CHECK THE 2nd POST.

EDIT:- There seems to be a working one-click root tool for the .55 FW which can be found here - http://xdaforums.com/showthread.php?t=2204321

It is a much easier method to root

1. Irrespective of whichever rom/kernel you are on, just flash this ftf with flashtool -

For Xperia S - http://xdaforums.com/showthread.php?t=1857198

For Xperia SL - https://docs.google.com/file/d/0BxpuzJJjkttpNTdhT2MtdjQySkE/edit?pli=1

Check this guide if you don't know how to flash a ftf - http://xdaforums.com/showthread.php?t=928343

2. Power On your phone and go to settings---> Developer's Options ---> Enable USB Debugging. Then go to settings---> Security---->Enable non-market applications.

3. Root your .45 phone with this - http://xdaforums.com/showthread.php?t=1886460

Just select normal root method and follow the on-screen instructions.

4. Then check if you have SuperSu installed in the applications laucher. Then install CWM from here - http://xdaforums.com/showthread.php?t=1939875

5. Before you reboot your device into CWM, download this pre-rooted .55 zip and copy this to the internal storage -

Xperia S LT26i - http://xdaforums.com/showthread.php?t=2005595

Xperia SL LT26ii - http://xdaforums.com/showthread.php?t=2159310

6. Power off your phone and then press then start the phone by holding the power menu. Once you see the SONY logo, press the volume up/down buttons, power button and keep touching the screen in the middle simultaneousy. ( I know it sounds a bit wierd:silly: )

7. Once you are in recovery, select wipe data/factory reset, wipe cache partition. Then go to advanced---> wipe dalvik cache. Then go to mounts & storage ----> format /system.

8. Then select the downloaded pre-rooted .55 zip in install zip from sd ( internal storage ). Wait until it finishes.

9. DO NOT REBOOT NOW! Hold the power and volume up button together for around 10s until you feel 3 vibrations consecutively. At this point, your phone WILL BE TURNED OFF.

10. Then download this ftf of .55 -

For Xperia S - http://xdaforums.com/showthread.php?t=1997030

For Xperia SL - https://docs.google.com/file/d/0BxpuzJJjkttpOHpyemVBdHRzNkU/edit?pli=1

11. In Flashtool, while selecting the .55 ftf just tick the box of EXCLUDE SYSTEM. Then start flashing the ftf on your powered off phone by connecting it directly into download mode.

12. Once the device boots, you will have a rooted .55 phone. Just re-install CWM just like in step 4 and you are ready.

Enjoy flashing custom roms for locked bootloader. Just remember that when /system is formatted, CWM is lost. Good luck.:laugh:

Press the thanks button if this guide helped you.:D

Credits :-

-- Mr. Krypton ( CWM Link )

-- LiveSqure (Stock FTFs)

-- Bin4ry (rooting method)

-- wym986 (one click root tool)

-- eroot (one click root tool)

-- ToledoJab ( for the Xperia SL .55 link )

-- NomNomM ( for Xperia SL .45 link ) - http://xdaforums.com/showpost.php?p=36249452&postcount=23

#include<iForgotYourName.h>;)