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Please read this if you considering unlocking the boot loader or rooting your phone.

Important information

Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader. You should only unlock the boot loader of your phone if you are an advanced user with good knowledge of the technology and risks involved.

For more information go here http://unlockbootloader.sonymobile.com/

Please also note

The Sony Xperia support team will not be able provide any support, related to unlocking the boot loader or rooting your phone.

We also recommend you to read the below blogposts.

http://developer.sonymobile.com/wp/2011/03/29/unlocking-the-boot-loader-in-the-new-xperia%e2%84%a2-smartphones/

http://developer.sonymobile.com/wp/2011/04/14/option-to-unlock-the-boot-loader-now-available-for-advanced-developers/

http://developer.sonymobile.com/wp/2011/09/28/sony-ericsson-supports-independent-developers/

Best regards
Sony Xperia support team

Reply
One time poster
Auni
Posts: 452
Registered: ‎2011-11-24

Re: Need help to root ICS 4.04 without unlock bootloader !

You are most welcome bro. :smileyhappy:

One time poster
3andala
Posts: 29
Registered: ‎2012-02-06

Re: Need help to root ICS 4.04 without unlock bootloader !

Finally here you can root ur device easily

http://forum.xda-developers.com/showthread.php?t=1683189 :smileyhappy:

Regards

One time poster
kartik77
Posts: 45
Registered: ‎2012-05-19

Re: Need help to root ICS 4.04 without unlock bootloader !

you can try this. I already tried it and found it useful.http://www.androidust.com/single-click-root-for-xperia-arc-s-ics-4-0-4-with-unlocked-bootloader/. I followed the procedure given here.

Anonymous(anon)
Posts: 0

Re: Need help to root ICS 4.04 without unlock bootloader !

It's simple. Flash ftf with 4.0.3 kernel (not full firmware!), root with Doomlord script and flash 4.0.4 kernel again. Proper ftf's are as always on xda.