How To Update Samsung Galaxy S2 GT I9100 with Exynos Extreme Custom ROM Firmware

Samsung Exynos LogoYou might have  surely head about the “Exynos” offering from the Samsung Electronics which is basically a 32 bit RISC processor system on chip (SoC) which is used in the powerful smart phones, tablet PCs and also in the Notebooks and delivers an excellent graphics with a blend of perfect performance which is here to meet your expectations by delivering state of the art performance as it’s a dual core CPU and has the highest memory bandwidth and comes with the World’s first triple play display which can decode 1080p video and is also a 3D graphics hardware powered with the high speed interfaces.

So, keeping this apart we will today see a Custom ROM for your Samsung Galaxy S2 GT I9100 which is named none other than about which we were talking about, “Exynos”. Though this custom ROM has no whatsoever connection with the Exynos Processor and with Samsung Electronics in any manner, the ROM developer promises to deliver the performance on the lines of the same with not only best of the class tweaks but also this custom promises to showcase a better Custom ROM than others. So, in the due course of this article we will see on how you can easily apply this update on your Samsung Galaxy S2 GT I9100.

To further make it simple, we have broken this article into 2 different sections wherein there are two different sections in the article, one is the Pre requisite instructions and then followed by the Procedure to apply this update on your Galaxy S2 Phone. It’s very utmost important to follow each and every instruction which is mentioned in this article or else you may land up in trouble.

44 Comments
  1. Reply Irfan January 1, 2012 at 12:11 am

    Hi Neal,

    i had bought samsung G-SII i9100 recently but i am facing urdu and arabic text encoding problem and my samsung version is under willl u help me to resolve the issue please.

    Android version 2.3.4
    Basebad version I9100XXKI1
    Kernel version 2.6.35.7-I9100XWKI4-CL575468 ROOT@DELL143 #2
    BUILD NUMBER GINGERBREAD.XWKI4

    • Reply Pradeep Neela January 1, 2012 at 10:33 am

      you need to apply with the arabic firmware, we will try to come up with the same soon!

  2. Reply Kevin Young October 7, 2011 at 4:20 pm

    Hi Neal,

    My phone says my android version is 2.3.3 and kernel is 2.6.35.7 XWKF1, I am thinking of having exynos on my phone, do i have to upgrade, downgrade or what? the firmware have different versions depending on locations right?im in the Philippines, which is right for my S2?I tried update on my kies but it wont continue on upgrade, it stops when it finishes downloading the file.my phone has been rooted already.

  3. Reply Ice September 27, 2011 at 9:55 pm

    hi Neal,

    I’m a newbee..I.m planning to update my FW to XXKI3,can i install Exynos Custom ROM after I have rooted my device?..Thanks..

  4. Reply cuco171987 September 26, 2011 at 9:58 pm

    yes i had. First I put into mobile “XXKG6 2.3.4 firmware”. After that i rooted it with “root the XXKG6 firmware” and after these two steps i copyied ” Exynos Custom ROM Zip File” into phone. I start recovery mode (volume up+middle button + power button) a i installed it as you write here. After that I turned on my mobile on. Everything I downloaded from active link´s you gave here.

    now my PDA is : I9100XXKG3
    PHONE : I9100XXKG3
    CSC : I9100oXAKG3
    Build Info : Wed Jul 20 19:59:13 KST 2011

    in SETIINGS -> about phone:
    Android Version 2.3.4
    Baseband version I9100XXKG3
    Kernel version 2.6.35.7-I9100JPKG2-CL342890 root@DELL 104 # 2

    Do you have any idea what to do?

    • Reply NeaL Pradeep September 28, 2011 at 2:50 pm

      please follow the article carefully, you have missed the pre requisite section completely!

  5. Reply cuco171987 September 26, 2011 at 4:08 pm

    Hi NeaL.
    I had a problem.. After I transfered the downloaded zip file to my phone and I entered into recovery mode, I choose “apply update from sdcard” and I find zip file I entered it. After that :
    – – install /sdcard …
    Finding update package…
    Opening update package…
    Verifying update package…
    E:signature verification failed

    What´s wrong? Can you help me?

    • Reply NeaL Pradeep September 26, 2011 at 4:55 pm

      Phone is not rooted, kindly root the phone!

    • Reply NeaL Pradeep September 26, 2011 at 4:55 pm

      Phone is not rooted, kindly root the phone again!

      • Reply cuco171987 September 26, 2011 at 8:55 pm

        I done it. Everything OK, just this Features and Screen shots of Exynos Custom ROM:

        CRT Animation along with Speed Mod Kernel by default,
        All new refreshing screen user interface with all new icons,
        Green colored Android styled theme with darker UI,
        Browser has been fixed and now comes with Lag fix,
        Battery indicator with Percentage,
        Modified messaging system with better options,
        Advanced Power Menu with ad blocks via the hosts file,
        Non incremental ring tone option with an all new Android market place,
        Increased and Optimized 3G Speed with few RAM and Kernel tweaks,
        Touch Wiz 4 along with Launcher 2,
        Optional Overclocking and Under volting via Set CPU version,
        Over scroll glow along with the transparent status bar.

        I must set them ON, or it´s done automatically??? Becouse I haven´t battery indicator with percentage. I haven´t advanced power menu and these Features. Where can I set them ON?

        • NeaL Pradeep September 26, 2011 at 9:22 pm

          its automatic, you should get all these. have you updated the firmwarE?

        • NeaL Pradeep September 26, 2011 at 9:23 pm

          its automatic, you should get all these. have you updated the firmwarE ON YOUR PHONE? if yes then apply the update again!

        • cuco171987 September 26, 2011 at 9:41 pm

          yes i had. First I put into mobile “XXKG6 2.3.4 firmware”. After that i rooted it with “root the XXKG6 firmware” and after these two steps i copyied ” Exynos Custom ROM Zip File” into phone. I start recovery mode (volume up+middle button + power button) a i installed it as you write here. After that I turned on my mobile on. Everything I downloaded from active link´s you gave here.

          now my PDA is : I9100XXKG3
          PHONE : I9100XXKG3
          CSC : I9100oXAKG3
          Build Info : Wed Jul 20 19:59:13 KST 2011

          in SETIINGS -> about phone:
          Android Version 2.3.4
          Baseband version I9100XXKG3
          Kernel version 2.6.35.7-I9100JPKG2-CL342890 root@DELL 104 # 2

          Do you have any idea what to do?

        • NeaL Pradeep September 28, 2011 at 2:54 pm

          please follow the pre requisites section, you have missed those instructions!

  6. Reply John September 25, 2011 at 12:23 am

    I followed the procedure but it seems I’m having a yellow triangle sign on my galaxy s2.. is there a way to revert everything back to the way it was?

    • Reply NeaL Pradeep September 25, 2011 at 8:24 pm

      but that yellow sign won’t hamper your phone experience! :)

  7. Reply anil September 23, 2011 at 10:53 pm

    Sir the phone is not restarting after applying the Exynos Extreme Custom ROM Firmware, as last message it is shown installation aborted. Sir how to start the phone?

    • Reply NeaL Pradeep September 26, 2011 at 12:02 am

      have you followed all the instructions? Where you missed out?

  8. Reply achu September 23, 2011 at 7:13 pm

    is it possible to go back to Gingerbread 2.3.4 XXKG6 after i install Exynos Extreme Custom ROM Firmware?if so what should i do?i mean just re install 2.3.4 XXKG6 firmware?

  9. Reply vicious September 23, 2011 at 6:28 am

    For all the people that have tried this ROM? pros and cons ?

  10. Reply Omar September 22, 2011 at 8:58 am

    Hi Neal

    why we i cant get easy updates, the last 3 updates have difficult steps. i’ll just go back to lite’ting rom and wait till 2.3.5
    . by the way i followed the steps and nothing happened

    • Reply NeaL Pradeep September 22, 2011 at 9:45 am

      yes you will continue to get updates, you can manually update at any point of time!

  11. Reply anil September 21, 2011 at 8:29 pm

    Sir if u can kindly reply, whether i can update to firmware version XWKH4 after updating with Exynos Extreme Custom ROM Firmware?

  12. Reply anil September 21, 2011 at 8:08 pm

    sir, after updating with Exynos Extreme Custom ROM Firmware, can i again update to firmware version XWKH4?

  13. Reply anil September 21, 2011 at 7:55 pm

    I am having samsung galaxy s2 with firmware version XWKH4, so for updating samsung galaxy S2 with with Exynos Extreme Custom ROM Firmware, do I have to again downgrade to firmware version XXKG6 2.3.4 firmware and root the phone, or can i update from the existing firmware?

  14. Reply anil September 21, 2011 at 7:45 pm

    I am having samsung galaxy s2 with firmware version XWKH4, so for updating samsung galaxy S2 with with Exynos Extreme Custom ROM Firmware, do I have to again downgrade with firmware version XXKG6 2.3.4 firmware and root it or update with the existing firmware?

    • Reply NeaL Pradeep September 21, 2011 at 7:52 pm

      you need to downgrade and then update with the same!

  15. Reply marvin September 21, 2011 at 5:59 pm

    Thanks for the reply.
    I believe you have mis-understood me. Actually, I was expecting a change from the start-up Logo but I did not notice any change. Even the battery gauge on GSII has not changed. Only the marketplace got changed on my device.

    Supposively, the start-up should show “Samsung Galaxy SII Exynos Extreme” right? For me it’s not. The same standard logo is showing during start-up.

    Thanks for your feedback once again.

    • Reply NeaL Pradeep September 22, 2011 at 9:53 am

      no, the start up logo will be the same across! its normal!

  16. Reply marvin September 21, 2011 at 3:23 pm

    Hello,

    I have noticed something after following your procedure. I have updated my FW and Rooted to XXKG6 (and checked the version on my device and it is OK). However, after I have applied the Custom ROM, the version has become XXKG3. Is this Normal? Also, I didn’t see the “Exynos Extreme” Logo during start-up.

    Thanks to give me a feedback.

    • Reply NeaL Pradeep September 21, 2011 at 4:15 pm

      yes its normal! as it has changed the start up logo!

  17. Reply Omar saad September 21, 2011 at 3:21 pm

    Hi Neal

    Can i update to Exynos ROM directly from Arabic JPKI1 Gingerbread 2.3.4 Firmware, “OR” do i have to (“DOWNGRADE”) to XXKG6 2.3.4 firmware and root it “and then” update the Exynos ROM

  18. Reply omar September 21, 2011 at 3:20 pm

    Hi Neal

    Can i update to Exynos ROM directly from Arabic JPKI1 Gingerbread 2.3.4 Firmware, “OR” do i have to (“DOWNGRADE”) to XXKG6 2.3.4 firmware and root it “and then” update the Exynos ROM

  19. Reply anil September 21, 2011 at 12:33 pm

    if u can kindly reply please

  20. Reply anil September 21, 2011 at 9:21 am

    I am having samsung galaxy s2 with firmware version XWKH4, so for updating samsung galaxy S2 with with Exynos Extreme Custom ROM Firmware, do I have to again update with firmware version XXKG6 2.3.4 firmware?

  21. Reply achu September 20, 2011 at 6:01 pm

    super fast Lightning ROM or this one better?

    • Reply NeaL Pradeep September 20, 2011 at 6:05 pm

      you can install any of those, Exynos one is the latest one!

      • Reply achu September 20, 2011 at 6:24 pm

        Thanks NEAL …Can you also confirm that Google Video got enabled in XWKH4 Gingerbread 2.3.4 if u dont mind…..cos its missing in some of the versions like XWKH4 etc

        • achu September 20, 2011 at 6:32 pm

          Thanks NEAL …Can you also confirm that Google Video got enabled in XWKH4 Gingerbread 2.3.4 if u dont mind…..cos its missing in some of the versions like XWKH3

        • NeaL Pradeep September 20, 2011 at 8:40 pm

          its not enabled!

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