Update Galaxy S GT I9000 with Stable Jellybean 4.2.1 Firmware – Guide : Recommended by AndroidAdvices

Jellybean 4.1 LogoIn a bid to make you experience the latest state of Art Jellybean 4.2 firmware in your Galaxy S I9000 smartphone, you can now install the C-RoM Mix v5.0 firmware which we will be checking out on how you can install the same. Please note that this custom ROM firmware come with a host of features which we have summed up with the help of screen captures below. So, over a period of this article we will be checking out on how you can install this firmware in your device. This ropes in the latest Jellybean 4.2.1 firmware.

Since this is the custom ROM firmware, you will be required to root the device. To check on whether your device is rooted or not, you will have to download the “Root Checker” app from the Google PLAY Store. Just in case if the device is not rooted, with the help of below instructions you can root the device.

Procedure to Update Galaxy S GT I9000 with XXJW4 Firmware

Procedure to Root Galaxy S GT I9000 on XXJW4 Firmware

After rooting, download the “ROM Manager” app from the Google PLAY Store to select the option of “Flash Clock Work Mod Recovery” in the ROM Manager app. Ensue that the minimum battery life is not less than 30% or else the device will get turned Off in the middle of firmware update.

Over the process of installing this update, there is a probability that the data might get lost or corrupted, so with the help of below mentioned steps you will have to create a backup of all your data. Don’t backup with the help of ROM Manager or with KIES.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

From the path “Settings > Applications > Development > USB debugging”, enable the USB Debugging, ensure that the USB debugging option is ticked.

Disclaimer: Follow all the instructions mentioned in this article as if there is any damage caused due to not following instructions then we shall not be held liable or responsible. Just in case if you face any issues then we will try our level best to address the same.

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So assuming that you are done with all the above mentioned steps, you can now head over to the next page where we have summed up a detailed guide on how to apply this firmware update.

  • Nitin

    I am updating it right now. After choosing the zip file in recovery mode, my phone has started showing a logo of “Semaphore”, no further activity since last few minutes???

    • Nitin

      It worked after reinstall, btw Google play is not working after installation

      • Pradeep Neela

        install the Google Apps Package again

    • Pradeep Neela

      you need to make sure that the Kernel used is supporting the base band version or not

  • bots

    wow i finally downloaded it its super,super.well the firware was fastly downloaded with the help of INTERNET DOWNLOAD MANAGER 5X faster. after i transfered it to the phone and finished it as the instruction said. the firmware is 4.2.1 but after everything l notice is now 4.2.2 auto update.fantastic.great joys guys is working better .everything is fine,5 days .

  • tom

    it’s faster. more ram available. so far all good but video call is not working.
    change back to 2.3.6.

  • Ankur Vora

    All buddies – This is very impresive update and worth to Give 4.5 of 5.

    I faced the same stucked mobile inbetween updating from zip. But try doing same procedure again from “intalling the ROM from zip” step. You all will succeed.

    I have been using this rom from last two weeks and try to give some comments on it. I hope the developers will take this positively and as points for betterment:

    1. As all know GTi9000 have free 397MB RAM only. and this ROM covers around 300+MB of that. It means there is very less RAM available after applying this update.
    My proposal to Developers is try reducing the RAM consumption so that we can install other third party applications and can have some RAM in spare for smooth working.

    2. Its missing two main applications : FM Radio, Office Application for Word,Excel,PowerPoint,PDF. Please try to include in furthur customization.

    3. Its missing Samsung Apps. application.

    4. I did not find any difference in sound after installing addon of Beats Audio. Am I correct?

    5. Video player and audio player is missing 5.1 effect which was originally there in official update. Is it possible to include?

    Of course, we can find some from Add-ons and other websites. But if included, it would be saving much time and increase completeness of ROM.

    I hope my comments are clear to you and you will consider these in further release. I will come out with further, if I found any.

  • Taha

    It installed but it doesnt starts up

    • Pradeep Neela

      is your device turning into Recovery Mode?

  • Sharath

    My SGS running on 4.1.1 Baseband version I9000XXJVT.
    can i directly flash this update from the recovery mode rather than again flashing 2.3.6, and rooting it.?
    and which file should i use, “Rom Bean 4.2.1 v2″ or “C-Rom mix V6″??!!
    please reply soon Neal :-)

  • Yousuff

    I found two files from that link which you have provided. C-Rom Bean 4.2.1 v2 and C-Rom mix V6. I downloaded both. When I tried to install, only the first one worked (C-Rom Bean 4.2.1 v2) but the 2nd didnt work on my Galaxy S. This Kernel is too good !! So far no issues. But drawbacks are there is no Swype keyboard and I didnt find the mobile tracker in security settings .
    Thanks Neal :)

  • osman

    It is really good. Thanks for you !

  • pete

    as Ashish said google play not working. keep getting error”android.process.media has stopped” ????

    • Pradeep Neela


      • Roger

        How do I install the Google apps package? Where can I download it?

        • Pradeep Neela

          from recovery mode you can apply the google apps package

  • Amit_chauhan_

    Dear Neal,

    Can you please help me for make root my samsung galaxy s (GT-I9000).Details as follows.

    Firmware version 2.3.6
    Baseband Version I9000DDJV7
    Build Number Gingerbread.ddjvb

    Appreciate if you can help

  • Narender

    My galaxy S is on 2.3.6. Can i directly update it to 4.1.2?

  • Elinaldo

    LInkk offf Up Again plz

  • nikunj pqtel

    Update now to i9000

  • Dingo

    Brocken link to C-RoM Mix v5.0

  • Dingo

    You don’t check link posted on site????
    So many time you posted brocken link.
    Why you posted just for fun ?

  • nomadic

    Also. I’m on amestris dark cyan v12 custom rom. Can I flash on top of this or do I need to flash / root xxjw4 first?

  • nomadic

    Download link does not work.

  • hazet

    “C-RoM Mix v5.0 firmware package” is a dead link!

  • jay

    im confuse is this the 4.2 or the 4.1.2

  • jay

    any issues with this firmware?

  • Amar

    What is the difference between this Jellybean 4.1.2 Codename Android Firmware?