How To Update Samsung Galaxy S GT I9000 to Android 4.2.1 Official...

How To Update Samsung Galaxy S GT I9000 to Android 4.2.1 Official Jellybean [Ultimate Guide]


Samsung Galaxy S GT I9000 users can now upgrade with Official Jellybean 4.2.1 Firmware. This is a official release by Samsung. This release fixed bugs which were in older version. This is AOSP (Android Open Source Project) developer’s release. You can also update Galaxy S GT I9000 via inbuilt functionality in your smartphone. But if you are unable to do please follow the instructions given below.


Samsung Galaxy S GT I9000 won’t going to see official Android 4.2 Jelly Bean ever due to its hardware specification but the latest Android 4.2.1 Jelly Bean update is now possible for Samsung Galaxy S GT I9000 although not officially.

Read the following instructions carefully while updating your Samsung Galaxy S GT I9000 to Android 4.2.1 Jelly Bean. Please note that each and every step mentioned in this article is important.

Disclaimer: The procedure given in this tutorial is considered as risky and maycause damage to your phone. It is recommended that you should not follow it unless you are familiar with these things. Follow this guide completely at your own risk.

I. Before You Begin:

1. The following procedure works for Samsung Galaxy S GT I9000 smartphones.

2. Make sure your device have at least 80% battery power.

3. You must have ClockworkMod Recovery installed on your device.

4. Make sure USB Debugging is enabled

II. Downloading Required Files:

1. Jelly Bean 4.2.1 ROM for Samsung Galaxy S GT I9000  [Filename: [JOP40D], Size: 211.5 MB]

III. Install Android 4.1.2 Jelly Bean ROM on Samsung Galaxy S GT I9000:

1. Connect your phone to PC using USB cable.

2. Copy downloaded files to the SD card of your phone.

3. Disconnect USB

4. Turn off your phone

5. Boot into recovery by pressing and holding Volume Down, Home and Power buttons

6. Wipe the Data and Dalvic Cache or you might brick your device afterwards

7. Select install zip from sdcard, then select choose zip from sdcard. (Locate the Jelly Bean 4.2 Rom .zip file) and select it by pressing Power button.

8. When installation is completed, go back to the main recovery menu and select reboot system now to reboot the phone and boot up into Android 4.2.1 ROM

Congrats! Well known and Android 4.2.1 Jelly Bean official firmware based ROM now installed and running on your Galaxy S GT I9000.


  1. Its not working, when i execute 7th step: it shows me an error “no space on SD….installation aborted”. But nothing is installed on SD card also it shows 13 GB as free space.

  2. Hi friends,

    I am carrying same mobile, Kindly some one help How to make routing mobile. I am not getting any files and application to make it

  3. Real Solution…. you should first install CWM( Clock Work Mode)in your samsung galaxy s GT-I9000 and ensure that your device has been routed by the CWM, then choose latest package 4.2.1 jellybean and install it as per procedure. You will see that your mobile has new look and running very fast with all latest features.
    with best regards,
    Habib-ur-Rehman Mushtaq,
    Gilgit. Pakistan

  4. Hello guys, my galaxy i9000 is running on official 2.3.6 & now i want something best and more for it. As well as my baseband version is I9000DDJV7 & build no. is GINGERBREAD.DDJVB and i dont know anything about updating. so, please help me what should i do 1st..? I’m eagerly w8ing..:)

  5. I had done all the stuff right got the Jelly bean but it’s slow and hanging moreover it’s touch and other buttons aren’t working ??/ Kindly help me :)

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