Galaxy S II

Why & How to Update Galaxy S2 GT I9100 with Official Jellybean 4.1.2 Firmware – Guide

JellybeanGood news for Galaxy S2 users is that you can now upgrade your Android experience with an all new Jellybean 4.1.2 Android OS. Dubbed as XXMS7, users can apply this firmware update so as to make sure that there are no bugs w.r.t battery drain along with some of the optimizations for the RAM consumption. So after checking out on what are the list of quick pre requisites mentioned below, we will be checking out on how you can update your device with the latest version of official firmware.

Why you should apply this XXMS7 Android Firmware in your Galaxy S2?

  • Better RAM Utilization,
  • Stock apps have been updated,
  • Minor battery tweaks,
  • Bug fixes

Note: As this is the official firmware update released by Samsung, applying this update won’t void the warranty.

Quick Pre Requisites:

  • Though, all your data might just be safe. It’s always recommended for you to back up the data so that just in case if the data gets lost or corrupted, the same can be restored manually with the help of below mentioned steps.

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

  • Head over to the path “Settings > Applications > Development > USB debugging” in your Samsung Galaxy S2 GT I9100 so as to enable the USB Debugging Mode. Make sure that your device is left with the minimum of 50% of battery life or else the device may get turned off in the middle of firmware update.

Disclaimer: We should not be held responsible in any manner for any damage happened to your Galaxy S2 due to not following the instructions mentioned in the article.

Let’s head over to the next step where we have mentioned the detailed guide which will help you upgrade the device firmware with the latest firmware.

Procedure to Manual Update Galaxy S2 GT I9100 Android Phone with Jellybean 4.1.2 XXMS7 Android Firmware:

  • Press and hold Home + Power + Volume down buttons to enter the device in the Download Mode. If your Galaxy S2 enters in the Normal mode, then you need to re try the process of entering the device in the Download Mode.
  • Click on “AP” tab in the Odin to select the tar file which you got after extracting the firmware package to click on “Start” in Odin.
  • Once you click on “Start”, you will now need to wait for the whole process of firmware gets finished. The whole process of firmware update will take around 3 -4 minutes and once done, the phone will be rebooted automatically.

Note: If at all your Galaxy S2 smartphone gets in the boot loop mode, then you need to turn off the device and then reapply the update from the start. To turn off you can reinsert the battery or say you can long press the power button.

Do let us know in the comments section just in case if you face any issues in the process of firmware update.



  1. Dinyar Rustomji

    July 15, 2014 at 9:14 pm

    Dear Friend,

    Link for Jelly Bean 412 Android package is not working. Odin is working fine

    Pls Chk. Thanks

    • Pradeep Neela

      August 16, 2014 at 11:47 am

      we will be very soon coming up with the new firmware to spice up your phone..

  2. Sohail

    June 27, 2014 at 1:34 pm

    Can i root my phone after this software update with the rooting file i used for rooting my phone with XXMS2? Kindly reply to my email directly, which is Thanx a lot in advance

  3. john.prn

    June 19, 2014 at 1:49 am

    can i use this to update my gt 19100g ?!

  4. noah607

    June 19, 2014 at 1:47 am

    can i use this to update my gt 19100g ?!

  5. noah

    June 19, 2014 at 1:44 am

    can i use this to update gt 19100g?!

  6. avesh

    June 13, 2014 at 9:49 am

    file is missing…

  7. Sohail

    June 6, 2014 at 1:04 pm

    Please direct me to the root file of this update. I would be highly obliged. Thanx a lot in advance

  8. kaka

    June 5, 2014 at 11:16 pm

    Hi all,

    how root with this version XXMS7?
    i really headache with searching that.
    Please kindly help…. 🙁

  9. avesh

    June 1, 2014 at 12:26 am

    bro file download ke liye pause n resume support v diya karo….

  10. Sohail

    May 30, 2014 at 1:44 pm

    Can my phone be rooted after applying this firmware version? If yes, where can i find the rooting file??

    • Pradeep Neela

      May 31, 2014 at 6:40 pm

      yes you can very well root the device sohail! Do let us know if you face any issues!

  11. Rui

    May 29, 2014 at 7:00 pm

    Link doesn’t work.

    • Pradeep Neela

      May 31, 2014 at 6:44 pm

      please check the same. We have tested just now and the link is working perfectly alright.

  12. avesh

    May 29, 2014 at 2:41 pm

    bro to apply this update do i need to root my phone…

    • Pradeep Neela

      May 31, 2014 at 6:45 pm

      no avesh, its not necessary to root the device.

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