If you are have sony xperia arc s LT18i with then this guide will help you root your LT18i.
The purpose of this guide is to give you the best service without having to leave panic situations, ijn no? So here's the second method. Faster, quicker and easier to follow.Everything, in order to eventually have a Sony Ericsson Xperia Arc's LT18i with rooting.Full speed ahead.
Read also Download Sony Xperia Z Launcher
Requirements

1. Sony Ericsson Xperia Arc's LT18i with ice Cream Sandwiches official update 4.1° c. 0.562, whether you have bootloader unlocked or not.
2. Windows Pc.
3. ADB drivers installed on your Pc, download from HERE .
4. USB Debugging enabled.
5. Enabling for "Unknown Font on your phone (settings > Security > Unknown Resources).

Second method-method "One-click"

• Download the Toolkit to make rooting from HERE and save all the content on your Pc.
• Extract downloaded headlights and now connect your phone to your pc with a USB cable.
• Double-click on file runme.bat, which is present in the extracted folder at the beginning of the procedure. This will trigger the rootingprocess. All you have to do is wait until he finished.
• After a while, finished this step, should a message up on written "All Done". If there appears, it means that the operation is successful.

Are you Amazed ? Of course, many of you will think that it makes no sense to post a harder, better start with this that is a thousand times more. Sometimes, however, there is a part of you that want to test their skills and attempt a more satisfactory way, where more specific skills are required and which are not satisfied by these "snapshots". That said, the methods are both faced with travel to eyes, make your choice and make sure that your Sony Ericsson Xperia Arc's LT18i is a device with root. And have fun like never before.
And also thanks to XDA Developers, deserving of producing always file to every situation, which we use for this guide on how to root xperia Arc LT18i. If you have any questions, please refer to the above XDA Developers via a thread in their forums.