Xperia S updated to ICS and root failed, can't power on, no blue light

[#1]

http://www.thespicygadgematics.com/2012/06/root-sony-xperia-s-lt26i-on-official.html
I try to root my Xperia S follow by the instruction from here,
and i unlocked my phone successfully,

Then after i flash the nozomi file, it ask me to "Flash the superSU using recovery mode",
But since i only can found the option "Install file from Zip"(something like that), and what i copied to SD card is apk file not zip file.
So i try to connect to my computer with MTP mode, but my computer just cant appear the Xperia S memory card

Then i decided not to flash with superSU and skip to flash with kernel.sin

after Flash completed, i turn on my Xperia S again, no life signal but only vibration, and if i try to re-plug the USB cable, there was no any blue light or orange light appear (and i have hold the volume up button when try to connect.

So now what should i do to help my phone back to life?

[Nabeel · Accepted solution]

Is your bootloader unlocked ?

if no then follow this

________________________________________________________________

Backup everything as it will erase all data on phone (sms, contacts,apps)

Update/Repair your phone via PCC or SUS

PCC (PC COMPANION) – Repair your software with this .First do the setup without connecting your mobile to pc.(only connect when you are asked to).

Do it as follow >> PCC > SUPPORT ZONE> SOFTWARE UPDATE> REPAIR SOFTWARE (written with blue)  

PC Companion http://www.sonymobile.com/global-en/tools/pc-companion/

SUS ( Sony Update Service)  ... download and install it on pc and follow the on-screen instructions http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe

                  or

http://www.sonymobile.com/global-en/tools/update-service/

Both the links are same

________________________________________________________________

If your bootloader is unlocked then first relock it

http://forum.xda-developers.com/showthread.php?t=1527159

[#3]

Now i Google it and successfully make my phone's blue lights appear
(the solution is hold down power button and volume up key until you feel 3 vibration, then hold down volume up botton and plug in the USB cable)

So the blue light turns up meant i may able to save my Xperia S life with flashing ROM,

Is this the instruction i need?
http://forum.xda-developers.com/showthread.php?t=1723610

Since i'm noob if i save my phone by using the "EASY WAY" from this instruction, download the Xperia S prerooted ICS and flash it. Will it save my phone life successfully? (Now still downloading, sorry for keep asking, i just don't wish to using the wrong way for saving my phone)

[#4]

Sorry i see your message after i replied
my phone is unlocked and now i trying to follow your instruction, thank you

[Nabeel]

Even i read your reply now, you could follow this way as well

You don't need to unlock your bootloader for this purpose

[Thommo]

ICS Pre-rooted img https://docs.google.com/open?id=0B-yM_qnM8ZPRQlB4N2t2X1lQUGM

[#7]

Now still downloading the prerooted ICS,
and i tried to relocked the phone with flashtool (follow by the link you gave me)
but it show me Error - Error flashing. Aborted

[#8]

thank you, i already downloading the img file, hope it work