Galaxy S III

How to Update Galaxy S3 I9300 with KitKat 4.4.2 Android Firmware – Guide

Samsung Galaxy S3 Android smartphone users will no less than be rejoiced to know that you can now make use of KitKat 4.4.2 Android firmware. Though, this update is an unofficial firmware update in the form of custom ROM firmware dubbed as Super Nexus Android ROM, it provides stunning Nexus experience overall. The best part of this is that it comes with the latest features without comprising on the user experience. So, let’s check out on what are the detailed steps with which you can apply this firmware update.



  • Deodexed
  • Rooted (Super SU)
  • BusyBox Installed
  • No 3rd Party App
  • ZERO Bloatware
  • Android Source Code vastly improved and optimised (i.e. Bionic, Dalvik, Webkit, Framework, libcore, SQlite etc – Thanks to CAF)
  • Init.d Support
  • Rsync Support
  • UserInit Support
  • Bash & Nano Support
  • Native SIP/VOIP Support
  • OpenSSH Support (ssh, sshd, scp, stfp)
  • HSPA+ Support
  • OpenVPN Support
  • Ad-Hoc Network Support
  • exFAT and NTFS-3G support
  • EXT4 File System Optimisations
  • Large APN & SPN List
  • SELinux enabled
  • Framework Features:
    -Extended Power Menu (Reboot, Recovery, Download & Screenshot Options)
    -Tweaked Animation Values Of Progress Spinners (Silky Smooth Loading Spinners)
    -Options for switching between USB Mass Storage and MTP/PTP (On Specific Devices)
  • Browser Features:-
    -Increased Maximum Tab limit from 16 to 64
    -Option To Close All Tabs With One-Click
    -Allowed Any Type Of File To Be Downloaded
  • Phone Features:-
    -Noise Suppression
  • Miscellaneous Features:
    -Allowed Installation Of Apps From Unknown Sources By Default
    -Disabled Data Roaming By Default
    -Removed Google’s Software Updates Option from Settings
    -Enabled Gesture Input By default
    -Emoji Enabled by default
    -Hardware Information of the device (Settings>About Device>Hardware Information)

Quick Pre Requisites:

  • It’s recommended to not to use the KIES for taking the backup as it may not help you restore the data. Manual backup will help you restore the data at any point of time.

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”

  • Enable the USB Debugging from the path “Settings > Applications > Development > USB debugging”.
  • Minimum battery life should be 40% so as to ensure that the phone doesn’t get turned Off in the middle of update.
  • As this is the custom ROM firmware, you will have to make sure that your device is rooted. To check on whether your device is rooted or not, download the Root Checker app from Google PLAY Store. Just in case if your phone is not rooted, you need to

Manual Update Galaxy S3 GT I9300 with Official XXUFME7 Jellybean 4.1.2 Firmware

Guide to Root Samsung Galaxy S3 GT I9300 on XXUFME7 Jellybean 4.1.2 Firmware

Disclaimer: We should not be held responsible or liable in any manner for any damage caused to the device which is very unlikely if you follow the instructions carefully mentioned in this article.

Assuming that you are done with all the above mentioned list of quick pre requisites, you need to now proceed to the next step which will help you update the device with this Jellybean 4.3 Android OS.

KitKat S3 2 KitKat S3 3 KitKat S3 1

Procedure to Update Galaxy S3 with Super Nexus 4.4.2 Android OS:

  • Download the below mentioned packages in your computer;

Android 4.4.2 SuperNexus 4.0 I9300 Build 1
Google Apps KK 20131209

  • Once Downloaded, connect your Galaxy S3 with the help of original USB cable and place this zip files in the device. Disconnect the device so that it can be entered in the Recovery Mode.
  • Recovery mode in Galaxy S3 can be entered by holding the Volume Up button + the Home key button (the middle button). While holding these both buttons, you need to switch ON your device. In recovery mode, select options to clear and wipe the data present in your phone. In recovery mode, select “install zip from sd card” and then choose the zip file of KitKat 4.4.2 Android firmware and then the Google Apps Package which you have placed in your phone.
  • Once the firmware is updated, select “Go Back” and select “reboot system now”. The whole process of firmware update will take around 4 -5 minutes and in some cases it may take more time.
  • To check on whether the firmware is updated or not, head over to the path “Settings > About Phone” for checking the same where you will see the current firmware version as KitKat 4.4.2.

Note: If at all your Galaxy S3 gets in the boot loop sequence 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.

So there you go, you have now successfully applied the latest KitKat 4.4.2 Android OS in your Galaxy S3 which comes with advanced Jellybean features. Do let us know in the comments section just in case if you face any issues in the process of firmware update.



  1. yazan halaseh

    May 4, 2014 at 4:55 am

    When I update my phon from 4.1.2 to 4.3 my phon is to low when I update to kitkat 4.4 is the software is to low too ???
    I am so sorry for my english

  2. asdasdf

    April 22, 2014 at 2:36 am

    does work thanks

  3. Merv

    February 5, 2014 at 6:38 am

    Do I need to root my samsung galaxy s3 which is running 4.1.2 before I follow the steps provided above to upgrade to the software to 4.4.2 KitKat? Can you provide instructions how to Root as well if this is the case please?

  4. jonathan

    January 23, 2014 at 4:07 pm

    File signature verification error. Help please.

    • Pradeep Neela

      January 25, 2014 at 9:59 am

      please root the device and install ROM Manager to flash custom recovery image. Signature is validated

      • faiyaz

        February 10, 2014 at 9:20 pm

        i do have rooted phone but i don’t know how to do with the rom manager.
        pardon my naivety but please help me. I want kitkaaat 🙁

  5. Aniruddh Bhatt

    January 3, 2014 at 7:21 pm

    I Installed it and works perfectly but my external sd card saw in the storage but does not read in file manager. sorry for my english

  6. Chetan

    January 3, 2014 at 4:22 pm

    can I update this version on 4.3 I9300XXUGMK6? please update me before i use this. Thanks.


    • Pradeep Neela

      January 5, 2014 at 4:54 pm

      yes you can apply this update

  7. Celso

    January 3, 2014 at 4:49 am


    After install the XXUFME7 firmware, my device no longer recognize my network. And the KitKat update doesn`t work. In recovery mode says: “installation aborted” 🙁 . Any help?????


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