Root Sony Xperia Arc / Arc S Official Android 4.0.3 ICS firmware 4.1.A.0.562

Previously we shown up a quick tutorial for installing official Android 4.0.3 update on both Sony Xperia Arc LT15i / Arc S LT18i. Sony has released same ICS firmware 4.1.A.0.562 version for both android phones. Both devices look identical to each other and they have been loaded with similar features and specifications. The name itself indicates that it was official update so it doesn’t come with pre-rooted; we need to root it manually for both Sony Xperia Arc LT15i / Arc S LT18i with some rooting applications DooMLoRD’s kernel and flashing it via Fastboot. The clockworkmod recovery will help you install some important zip files directly from the phone itself and it will be time saving process for all users.

Pre-Requisites:

1. Required original flagship devices Sony Xperia Arc LT15i and Arc S LT18i and both phones must be running with official android 4.0.3 ICS 4.1.A.0.562 either locked or unlooked bootloader.
2. Windows PC with working USB Data Cable.
3. You must download and install the ADB drivers on your PC from here. (Filename Flashtool-drivers.exe).
4. Back up all data like Call Log, Contacts, SMS, APN, MMS settings and also disable antivirus in the computer. Sometimes antivirus may interrupt the rooting process.
4. Enable USB debugging in your Sony Xperia Arc / Arc S from the path “Settings > Applications > Development > USB debugging”. The option of USB Debugging should be ticked.
6. Enable Unknown Sources on your device. You can go through from this way "Settings > Security > Unknown Sources", the check mark to enable the option.

Steps and Procedure How to Root Sony Xperia Arc LT15i / Arc S LT18i on official Android 4.0.3 firmware.

Step 1. First of all you need download all those three files from below.

Superuser package Here (Superuser-3.0.7-efghi-signed.zip, 625 kB)
ARC-DooMKernel file Here (ARC-DooMKernel-ICS-BETA-v04-lower-boot.img, 7.6 MB)
Fastboot Here (Fastboot.zip, 404 k)

2. Connect your Device with PC with the help of USB data cable.

3. Now transfer the Superuser-3.0.7-efghi-signed.zip file from your PC to SD card of your phone.

4. When you copied the file into the Phone, then disconnect the device from the PC.

5. Extract the Fastboot.zip file into C drive. Then you will get the following path C:\Fastboot\Fastboot. In this folder you have 4 files which you are extracted them. See the below image

6. Copy ARC-DooMKernel-ICS-BETA-v04-lower-boot.img file into the C:\Fastboot\Fastboot folder. Therefore you have 5 files in that folder.

7. Connect your phone to the PC via original USB cable. This time you need to enter into fastboot mode by following this procedure. First connect your USB data cable to PC, now HOLD the Menu Key on your phone then connect the other end of the USB cable to your device.

8. Now, open RUN command prompt in your PC by pressing windows logo button + R key in keyboard. Type cmd in the run box and Enter the following below commands on the command prompt.

cd c:\Fastboot\Fastboot
fastboot boot ARC-DooMKernel-ICS-BETA-v04-lower-boot.img

9. This will install the file to your phone. Your phone will reboot automatically.

10. When the phone has booted up, when you see ‘Sony’ logo, and Blue LED lights up of the phone, begin pressing the ‘Back’ button continuously. This will put your phone into Clockworkmod Recovery mode.

11. In the Recovery Mode, select “install zip from sdcard” then select “choose zip from sdcard” and then choose “Superuser-3.0.7-efghi-signed.zip” file.

12. After the installation has completed, select “++++Go Back++++” and then select “reboot system now” to reboot your system.

13. You should also install “Busybox” on your Smartphone, download it from Google Playstore.

You can also Root via One-Click Method

1. Download the Rooting toolkit package from here. (file name DooMLoRD_v1_Xperia-2011-ICS-ROOT-emu-busybox-su.zip)
2. Extract the downloaded file using either winrar or winzip.
3. Connect the Phone to your PC with USB cable.
4. In that extracted folder you can see the file name called runme.bat. Double click the runme.bat, then rooting process will start and it will take some time to complete the job.

5. When process is finished you will get a message like “All Done”. Finally your phone is rooted without any problems.
6. Disconnect your phone from the PC and install whatever applications you like superuser, setcpu and much more.

Congratulations, you have rooted your Sony Xperia Arc / Arc S. Share with us if you face any problem, we will help to resolve the same.