Update Galaxy S GT I9000 with Official Jellybean 4.2.1 Firmware – Guide

Galaxy S ICS New logoThe first build of Jellybean 4.2 has arrived for Samsung Galaxy S GT I9000 smartphone after the reports earlier came in that Jellybean 4.2.1 is headed for AOSP development. So, as a result the first build is out and in this article we gonna be checking out on how you can actually install this in your Samsung Galaxy S GT I9000 smartphone. Please note that this is not an Official firmware released by Samsung and Samsung won’t be coming out with any Official Jellybean versions officially due to hardware limitations. But not to worry as developers are sweating it out to give you the best Jellybean 4.2 experience on your Galaxy S GT I9000 smartphone.

Please note that since this is a custom ROM firmware, there are some bugs which will be there but will be addressed in the coming update releases. The best part of this custom ROM is that it’s based on the latest Jellybean 4.2 and also all the apps are based on the Jellybean 4.2.1 firmware. In the coming days we will keep you posted if at all there are any more new patch updates.

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

So, let’s get started with the detailed guide but before that you will need to follow all the pre requisites which are mentioned below so as to make sure that whole process of firmware updates gets done smoothly.

Quick Pre Requisites:

  • 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. Don’t backup the data with the helo of ROM Manager as it may brick the device for which we should not be held responsible.

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. Also, make sure that the battery life is not less than 40% as this may turn off the device in the middle of firmware update.

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.

So assuming that you are done with the above mentioned steps, you can now proceed to the next step where we have mentioned the detailed instructions on how to apply this firmware update in your Galaxy S GT I9000 smartphone.

28 comments

  1. Does Samsung Kies work with this Official Firmware, or it is necessary to sync contacs via Gmail?

  2. when i go to install a zip from sdcard i dont see the zip files plz help

  3. Check the title and the content:
    “Update Galaxy S GT I9000 with Official Jellybean 4.2.1 Firmware – Guide” vs.
    “Please note that this is not an Official firmware released by Samsung and Samsung won’t be coming out with any Official Jellybean versions officially due to hardware limitations. “

  4. Hey guys, please don’t use the word OFFICIAL Jellybean Firmware in big bold titles, then say it is not official firmare, and that there will never be official Jellybean firmware twice in the following paragraphs.

    • its an official firmware not released to the masses but is sourced from the Samsung Officially as its a test builds which are released to users in some select countries. So, its official

  5. 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 first? I’m eagerly waiting, Thanks

  6. guys, my galaxy i9000 is running on official 2.3.6 & now i want something best n more for it. and 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..:)

  7. please l have installed android 4.2.1. in my samsumg galaxy i9000.the problem is that after is no more google but android.dont have any market or google store. to reinstalled all the app i have bought.
    l updated it from android 4.0.3 which was google.how can l download app to my device thanks

  8. I have upgrade my samsung galaxy s gt i9000 to android 4.2 jelly bean and i cannot see the video in full screen mode in my mobile.Please tell me how to view the video in full screen mode in my phone……

  9. Fail to open sd card nd signature varification failed at time of browsing file
    Pls help

  10. Were is the google Apps Package link…..

  11. Does this work on Samsung i9001?

  12. it says ” failed to verify whole-file signature ” and ” signature verification failed ”

    Please help

  13. Hello are the bugs above in the newest fil from the 25/11 ?? or to have to download the fixes ?

  14. Please help me… I have installed Jellybam which suppose to be Android 4.2 for my Samsung Galaxy S2. Everything went well to the end but when phone rebooted it shows jellybean rocket flying and flying and nothing else is happening for hours and hours. All i have been able to do is reboot again. What should I do???

    • Clearly you applied the wrong update on a wrong device. This is for GT-I9000 users only. Your phone is a GT-I9100. To fix this, you must reinstall the OS with the correct ROM. Find it on this website

  15. Hi Neal,
    WiFi is not working in my device Galaxy S GT i9000 after installation of jellybean 4.2. I tried the old one WiFi fix but it did not work. Wi Fi is not opening.

  16. Can’t activate SIM card

  17. Hi why would you install a ROM which you already know has bugs ?