How To Unlock Bootloader of Sony Xperia Arc S

Here is the easiest step on how you can unlock Sony Xperia Arc S bootloader. Unlocking your bootloader allows you to Flash a Kernel and ROM's. Flashing will give the phones ability to adopt on whatever themes and system you wanted to run on your phone.
Unlocking Bootloader will voids smartphones warranty. So do this at your own risk. Follow the steps cautiously and read it word by word to prevent problems. Happy Bootloading.

How to Unlock your BOOTLOADER

credits to lollylost100 from XDA always Remember:

► Unlocking the Bootloader will void the phone's warranty.

► Unlocking the Bootloader will wipe the phone's data.

► Do not perform Software Update once phone's Bootloader has been unlocked or else it will be bricked.

1. Download FASTBOOT PACKAGE and 32bit and 64 bit DRIVERS

2. Go to this LINK

3. At the bottom click 'Continue' and enter your IMEI (type *#06# to find out), name and email address

4. The site will give your UNLOCK KEY. Save it in a notepad.

5. Extract fastboot.rar and open fastboot folder.

6. Hold SHIFT and right click on the background of the folder. Select " Open Command Command Window here ".

7. Connect your phone in fastboot mode (turn phone off, hold menu button and plug in USB Cable)

MENU BUTTON IS THE LAST BUTTON AT THE RIGHT.

8. In the cmd windows type in fastboot.exe -i 0x0fce getvar version.

If it returned a value, It means the phone is connected properly.

9. Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key provided in step 4.

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