Update Sony Xperia S LT26i With ICS 4.0.4 Firmware

Sony Announced ICS Update For Xperia S In The Last Week of June. By Keeping The Promise, Sony Has Rolled Out Much Awaited Update of ICS (Android 4.0). The Update Has Build Number 6.1.A.0.452 & Kernel Version 3.0.8. This is Generic Swiss Update Which is Released For Specific SI Numbers (1257-3740). But Those Who Wants To Keep Their Hands Before They Can Get This Update Officially in Their Region & Want To Taste The Latest Build Of Android On Their Phone Can Proceed With The Procedure Mentioned Below.

Let Us Go Through The Quick List of The Things We Will Be Checking In Our Further Article :

  1. Essential Steps Before Updating Firmware.
  2. Procedure To Update Sony Xperia S LT26i With Official ICS 4.0.4.

update sony xperia s lt26i with ics 4 0 4 firmware0

Disclaimer : We Have Made This Article Covering Each And Every Part At Our Level Best.In Case If Any Damage Happens to Your Device (It Should not Be), Neither We nor Sony will Be Held Responsible For It.And Also Please Be Noted That Flashing Firmware May Void Your Device’s Warranty.So Flash It At Your Own Risk.

Essential Steps Before Updating Firmware:

  • You Must Enable USB Debugging By Checking the Box in your device by Following the Path Below:

Settings -> Applications -> Development -> USB Debugging

  • It will highly Recommended to Backup all Your data Stored in your phone So as to Restore it back just in case If You Lose or Corrupt the Data During this Process.
  • Your Device Must be Charged up to 70% or Above Battery Level to Ensure that Your Device should not be Turned Off During this Process.
  • It will be Recommended to Temporary Disable Security Tools as well as Antivirus Installed on your Computer as This might Interrupt the Process.

By Assuming that you have followed all the instructions mentioned above, You are Now Ready to Move to Rest Part of The Article Where We Will be Checking how to apply ICS 4.0.4 Firmware Update in Xperia S.

Procedure To Update Sony Xperia S LT26i With Official ICS 4.0.4 :

  • Firstly You Need To Download The Two Files Which is Mentioned Below :

  1. Xperia Flashtool.
  2. Xperia S ICS 4.0.4 Firmware Package. | 335.15 MB
  • Install Flashtool Which You’ve Just Downloaded In Your Computer (For You Convenience, It is Recommended To Install Flash Tool in C: Drive).
  • After Installing Flashtool, Install Its Update (flashtool-update-0.8.x- in The Same Folder Where Flashtool is Installed.
  • Extract Xperia S ICS 4.0.4 Firmware Update Package (LT26_6.1.A.0.452_Generic_CH_1257-3740_.rar) in Your PC, You’ll Get .ftf File.
  • Navigate C:flashtoolfirmwares Directory.Delete All The Data in That Directory If It is Present Over There.
  • Copy/Move The Extracted Firmware Package File (.ftf File) In The C:flashtoolfirmwares Directory.
  • Now We’ll Proceed To The Actual Firmware Updating Procedure In Our Further Tutorial.
  • Open Xperia Flashtool Which You’ve Just Installed.Select Flash Option From The Top Corner of The Tool.(Refer The Image Below).

update sony xperia s lt26i with ics 4 0 4 firmware1

  • You’ll Be Ask To Select Either Flash Mode Or Fastboot Mode.Select Flashmode & Press Ok.

update sony xperia s lt26i with ics 4 0 4 firmware2

  • After Selecting Flash Mode, Firmware Selection Window Will Appear.In The Left Side Select LT26i (Version 6.1.A.0.452).
  • In The Right Side, Tick The Following 4 Options Only.
  1. Wipe data
  2. Wipe cache
  3. Wipe apps log
  4. No Final Verification

update sony xperia s lt26i with ics 4 0 4 firmware3

  • Press Ok Button. Wait For It To Prepare.Now It will Ask You To Connect Your Mobile, Follow The Steps Carefully & Connect Your Phone.(While Connecting The Device To The Computer, Turn Off Your Xperia S. Press & Hold The Back Key.Now Connect It To The PC).
  • As Soon As Connect Your Device To PC, Flashing Process Should Now Start.Once You See The Flashing Finished Message In Flashtool. Remove/Detach The Device From PC & Wait For The Device To Reboot (First Boot After Flashing Firmware Takes More Time Than The Usual.So Don’t Panic & Be Patient).

update sony xperia s lt26i with ics 4 0 4 firmware4

Congratulations ! By This Time Your Sony Xperia S Should be Running On Latest Firmware Update of ICS 4.0.4.Now In Case If You Face Any Difficulty While Flashing The Firmware, Do Let me Know In Comments.I Will Be There To Assist You As Quick As Possible.

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Viraj Kshatriya

Hello everyone, I'm Viraj, the chief editor at Android Legend. When I'm not checking out the latest stuff happening in Android, I mostly spend my time flashing different ROMs, testing Android apps & games. Feel free to join me on Google+.
  • Umar Kaboji

    when i start updating my xperia s with pc companion it show me you have no update on your phone. and i am running on 2.3.7 and i want to update my phone to 4.0,,,, plz help me

    • Sanket

      Use this method.

  • raj

    No flashtool file available at given location for flashing xperia sola n i m unable to comment in that forum. So could you just provide the working link to download flashtool for upgrading MT 27i sola to ics 4.0.4?

    • Viraj SK

      Link is updated. Thanks for notifying…

  • wahab

    i want to move back from cm10 to ics. and i did obey your procedure but when i connected my xperia s in fastmod by press volum+ button. its LED turns blue… and i have wait for 1 hour nothing will happen… please tell me what may i do…

  • Nyi Nyi


    • Viraj SK

      You’re welcome…!!

  • jajou

    hi, all , how to unlock the sim by flasfhing in sony xperia lt26i

  • wasseem

    how much time needed after first reboot?, it has been 20 minutes and the device did not get on,
    when i press the power button once, the green led give me a signal

  • aaamitster

    can we update normally via pcc if any further updates are released or we should do it every time by the same flashing process once it has been done?

    • Viraj SK

      Yes You Can. No Need To Flash Using Flashtool Again & Again..