Ericsson Xperia Arc S

How to Update SONY Ericsson Xperia Arc S with Official ICS 4.0.3 Firmware

Procedure to Update SONY Xperia Arc S with Official ICS 4.0.3 Firmware:

  • First up you will have to download the Flash tool and the update file from here to your computer. Rename the update file as “A”, extract all the contents to place all the files in the “C:/flashtool” path. In the process of doing so, it will ask whether to replace the files, you need to select “yes”.
  • Up next, open the Flashtool.exe in your computer and then go to the path C:/> flashtool > firmwares > delete everything present and exit. Download the ICS 4.0.3 Firmware Package for Xperia Arc S in your computer and extract the same to get the .ftf file.
  • Open the flash tool and then click on the “flashing icon” situated at the left side as shown in the below screen capture. Select “flash mode > Ok”. On the left box, you must see that the firmware name will be mentioned.

flash tool

  • Now in the right side, you now need to enter the below mentioned options as shown below. Once you have selected all the options, you now need to click on the “Ok” tab to start the process of firmware update.

Save options

  • Once the firmware is updated successfully, the device will reboot. You can check whether the firmware has successfully updated or not from the path “Settings > About Phone” where it will show the current firmware as 4.1.A.0.562.

Note: just in case if the phone doesn’t get updated successfully, you need to repeat the whole process from the start.

Congratulations, you have now successfully applied the update of 4.1.A.0.562 Official ICS firmware in your Sony Ericsson Xperia Arc S. Do let us know in the comments section just in case if you face any issues in the process of applying the update as we will try our level best to sort out the same.

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  1. mark mccoy

    April 3, 2013 at 6:37 pm

    i couldn’t find the any of the files from the links provided

  2. Xun

    October 25, 2012 at 3:55 pm

    I can’t update my phone,teach me to update,please
    Last time I was update my phone and it was stop at the logo of Sony and Xperia
    Help me!!!

  3. Daniel

    September 10, 2012 at 8:27 pm

    This will work to sony xperia arc s from tmn (Cellphone Provider) and with bootloader unlock allowed no

  4. nana

    July 18, 2012 at 6:53 am


  5. Ahmed

    July 16, 2012 at 7:12 pm

    Will the ICS slows down the phone performance ??

  6. nina

    July 15, 2012 at 8:47 am

    its worked.great

  7. Amalinasuhaili

    July 13, 2012 at 8:35 pm

    great 🙂

  8. Coner

    May 24, 2012 at 10:29 pm

    24/057/2012 17:57:37 – INFO – Start Flashing
    24/057/2012 17:57:38 – INFO – Flashing loader
    24/057/2012 17:57:39 – INFO – Ending flash session
    24/057/2012 17:57:39 – ERROR –
    24/057/2012 17:57:39 – ERROR – Error flashing. Aborted
    24/057/2012 17:57:42 – ERROR – Drivers need to be installed for connected device.
    24/057/2012 17:57:42 – ERROR – You can find them in the drivers folder of Flashtool.

    What is this as it has happened 4 times and i have installed all of the drivers each time?

  9. sandro

    May 9, 2012 at 7:43 pm

    Does it work with Arc S(Lt18a)? I think it’s brazilian version of Arc S(Lt18i)

  10. P

    May 7, 2012 at 7:54 am

    Worked great!! Thanks 😀

    • guri

      October 23, 2012 at 3:50 pm

      how to downlod 4.0.2 ?

  11. mody

    April 30, 2012 at 12:59 pm

    i’ve changed the kernel
    and now i want to return to the original kernel
    but even after flashing this firmware it doesn’t return back
    so please tell me what could i do??

  12. Towsif

    April 25, 2012 at 11:24 pm

    A noob level question…If i flash it with ICS, will my cwm recovery go away. I have the GB fw backed up in it.

  13. prajwal

    April 24, 2012 at 8:12 am

    does all the features work correctly in phone after this update? like calls and message and Camera ..?

  14. Jesus R

    April 23, 2012 at 6:54 pm

    And, by the way, GREAT work from Sony developers: ICS 4.03 FLYES on the Arc S… super fluid interface.
    let’s see how is the battery life, but so far it works fine (and all the settings have been maintained in the upgrade from 2.3.4 to 4.0.3, so thanks!.

  15. Jesus R

    April 23, 2012 at 6:42 pm

    hey… wait a minute… but after that error flashing, the phone sucessfully starts with the new SONY and XPERIA logos… and the ICS 4.0.3 version (Sony compilation number 4.1.A.0.562) is sucessfully on the phone (after some post-upgrade process to optimize Andraid Apps and contacts Database… uff!.
    So, everything is fine then, Xperia Arc S sucessfully upgraded as stated by the process and information here.

  16. Jesus R

    April 23, 2012 at 6:37 pm

    Followed process step by step.
    Tried on a Xperia Arc S, the update process fails at the end of the flashing process, with these last lines error log:

    23/002/2012 15:02:13 – INFO – Flashing system.sin
    23/004/2012 15:04:34 – INFO – Ending flash session
    23/004/2012 15:04:34 – ERROR – ERR_SEVERITY=”MAJOR”;ERR_CLASS=”MEMORY_CLASS”;ERR_STATIC=”HASH_VER”;ERR_DYNAMIC=”Final data verification failed”;
    23/004/2012 15:04:34 – ERROR – Error flashing. Aborted
    23/004/2012 15:04:35 – INFO – Device connected in flash mode
    23/004/2012 15:04:36 – INFO – Device disconnected

    Tried two times, always with the same error.

  17. Miraz

    April 23, 2012 at 11:44 am

    thanks… its working perfectly….. 🙂

  18. REHMAT

    April 23, 2012 at 3:35 am

    really good i updated it successfully. thanks

  19. Howard Baker

    April 21, 2012 at 5:51 pm

    Worked perfectly first time. The only thing I had to do which wasn’t in your tutorial was go to the Flashtool drivers folder and install some Windows drivers. Thanks very much.

  20. nipun

    April 21, 2012 at 9:30 am

    do we have ics update for xperia arc?

    • piyush

      April 26, 2012 at 11:18 am

      will get it in early may…hope for the best..

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