How to manually upgrade Nexus S from Android 2.3.6 to Android 4.0 Ice Cream Sandwich

If you own T-Mobile’s variant of Samsung Nexus S (i9020t) and don’t want to wait for the official OTA Android 4.0.3 update, you can install it manually. The procedure below will upgrade stock Android 2.3.6 build GRK39F to Android 4.0.3 build IML74K.

With a rooted phone the easiest update process is to use ROM Manager (Download ROM -> Stock Images -> Nexus S 4.0.3).

If you don’t have root, follow these manual steps (if you are new to the update process, check out this slightly outdated, but detailed update guide).

  • Download the update package.
  • Rename downloaded file to update.zip.
  • Copy the update.zip file to the phone’s internal storage.
  • Turn the phone off, press and hold Volume Up and Power to boot into the bootloader.
  • Using Volume Up/Down select “recovery” and press Power button.
  • After the exclamation point in a triangle appears, hold the Power button and press Volume Up.
  • Using Volume Up/Down select “apply update from /sdcard” and choose the update.zip.
  • After the update process is finished, select “reboot system now” and press Power.
Android 4.0.3 Ice Cream Sandwich build IML74K

Enjoy!

Sources: XDA, koush.

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39 Comments

  1. Sanzo
    Posted January 18, 2012 at 10:12 pm | Permalink

    Can i follow this procedure to update my Samsung Galaxy Y GT-S5360 from Android 2.3.6 to 4.0 ?

    • Posted January 19, 2012 at 8:56 am | Permalink

      The update procedure is the same, but you need to have an update file specifically for Galaxy Y. The link that I included in the first paragraph will work only for Nexus S. I don’t know if Samsung plans to update Galaxy Y to Android 4.0. If they don’t, hopefully CyanogenMod will support it: Samsung Galaxy Y (GT-S5360 / GT-S5363).

  2. Posted February 24, 2012 at 6:50 pm | Permalink

    can i follow this procedure to update my phone – samsung galaxy w wonder GT-I8150 from android 2.3.6 to 4.0

    • Posted February 27, 2012 at 1:14 pm | Permalink

      No, the image linked in this post is for Nexus S only. You can check out the list of devices supported by CM9 here: (you will need to find out the codename of your device, e.g. Nexus S is “crespo”).

      • Posted June 24, 2012 at 10:04 am | Permalink

        i downloaded this update can i use it for my spice stellar cuz its an upgradable to 4.0….so can u use it…………

      • nagendra
        Posted December 7, 2012 at 11:58 pm | Permalink

        i have i ball andi 4d android mobile 2.3.6 gingerbird i have to upgrade into ics it is posible…
        kernal version 2.6.38.6-perf…plzzzz reply me………………………

        • amit kr
          Posted April 7, 2013 at 11:46 pm | Permalink

          yes u can…. no any risk…. it is checked by us…..

  3. manoranjan
    Posted March 4, 2012 at 11:47 pm | Permalink

    can i follow this procedure to update my phone- samsung galaxy note-gt-n7000

  4. Jane
    Posted March 6, 2012 at 7:49 am | Permalink

    After I manually upgrade to 4.0, will I receive any updates or changes from Google?

  5. khaja d heart hacker
    Posted June 6, 2012 at 7:38 pm | Permalink

    can i update my SAMSUNG GALAXY POP GTS-5570 FROM ANDROID 2.3.6 TO 4.0 BY THIS METHOD OR BY ANOTHER METHOD PLEASE TELL ME ILL BE WAITHING….

  6. Amr Saleh
    Posted June 20, 2012 at 3:05 am | Permalink

    kindly please tell me how to upgrade the galaxy Wonder GT-I8150 Android Ver 2.3.6 to Ice Cream Sandwitch

  7. Deepak
    Posted August 2, 2012 at 1:26 pm | Permalink

    Can I upgrage my samsung galaxy Ace Duos from 2.3 to android 4.0

    • William McCarthy
      Posted August 4, 2012 at 2:47 am | Permalink

      I Have just bought galaxy nexus How can I upgrade From 2.3 to 4.0

  8. gurmit baliyan
    Posted August 11, 2012 at 5:30 am | Permalink

    i hv gt-s5360 android 2.3.6 intalled plz tell me to upgrade it to higer like 3.0 or smthing plz help

  9. Uros
    Posted August 21, 2012 at 9:49 am | Permalink

    Can i due that on my Samsung Galxay Mini 2 ???

    i have android 2.3.6,please tell me,i must play games on 4.0 !!!!

    • Uros
      Posted August 21, 2012 at 9:50 am | Permalink

      and,when i it update,can i back to another (old version) 2.3.6 ???

  10. nag
    Posted November 2, 2012 at 12:07 pm | Permalink

    sir…. this is nagaraju….. siri have purchased karbonn a1+ android version 2.3.6 mobile…. but this

    version i am not interest.. so upgrade ice cream sandwich… its possible??? plz help me?????

  11. sudhir
    Posted November 6, 2012 at 11:10 am | Permalink

    Can i also use the above procedure to upgrade my Micromax A84 android 2.3.6 will it work properly on it or there r chances of this not working fine…. how can i upgrade my Micromax A84.. please suggest. thanks

  12. Posted November 13, 2012 at 10:01 pm | Permalink

    i hv gt-s5830i android 2.3.6 intalled plz tell me to upgrade it to higer like 3.0 or smthing plz help

  13. Posted November 15, 2012 at 7:18 am | Permalink

    this can work on samsung galaxy ace duos s6802 ?

  14. akhil
    Posted November 24, 2012 at 11:06 pm | Permalink

    how 2 change andriod 2.3.6 to4.1….

  15. Posted January 7, 2013 at 11:21 pm | Permalink

    How to turn in if there are the ‘ad fastboot : recovery’ or the enter qpst download’ ??

  16. Posted January 7, 2013 at 11:30 pm | Permalink

    how can v upgrate a45 to 4.0

  17. Posted January 7, 2013 at 11:31 pm | Permalink

    a45 2.3.6 to 4.1

  18. Posted January 7, 2013 at 11:34 pm | Permalink

    plz tel me to upgrate a45 to4.1

  19. ayush
    Posted January 18, 2013 at 1:42 am | Permalink

    can i upgrade my micromax a73 2.3.6 to 4.0

  20. JASS
    Posted February 3, 2013 at 2:19 am | Permalink

    can i upgrade my micromax A65 from gingerbread to ICS

  21. Posted February 17, 2013 at 10:34 pm | Permalink

    Can i follow this steps to upgrade me micromax a65 from v2.3.5 to v4.0.3

  22. Posted February 17, 2013 at 10:36 pm | Permalink

    Can i follow this steps to upgrade my micromax a65 from v2.3.5 to v4.0.3

  23. Posted February 21, 2013 at 8:22 pm | Permalink

    Is it possible to upgrade the android version in KARBONN A1+ MOBILE IF YES THEN PLEASE REPLY ME HOW TO UPDATE THE VERSION FROM GINGERBREAD TO HIGHER VERSION OF ANDROID……….

  24. Posted February 21, 2013 at 9:55 pm | Permalink

    my phone is karbona1+ and its android version is 2.3.6. can i update it to 4

  25. Posted February 21, 2013 at 9:56 pm | Permalink

    my phone is karbonn a1+ and its android version is 2.3.6. can i update it to 4

  26. Posted March 11, 2013 at 7:06 am | Permalink

    Realy it run in my karbonn a1+ 2.3.6

  27. Leandra
    Posted March 14, 2013 at 10:15 pm | Permalink

    Healthy water can help increasing human body function and make
    human can live longer. s) are smaller than water molecules
    so they can. The specific technique in RO will work will be as
    follows: Reverse osmosis pushes the liquid through the semi-permeable membrane.

  28. balaji
    Posted March 26, 2013 at 8:53 pm | Permalink

    i am using karbon a1+ . in this update is possible for me to change into genjer version to 4.3.6 android version .give me the solution how to change

  29. hosam
    Posted May 2, 2013 at 9:38 am | Permalink

    why gave me error my phone s-5360 gt
    plz can you gave me video

  30. purna
    Posted May 8, 2013 at 5:55 am | Permalink

    can i used the same procedure to upgrade 2.3.6 to 4 in my mobile set karbonn a4

  31. purna
    Posted May 8, 2013 at 6:08 am | Permalink

    can i use the same procedure to upgrade 2.3.6 to 4 for karbonn a4

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