Manual Update Galaxy S3 GT I9300 with Official Jellybean 4.3 XXUGNA8 Firmware – Guide

Samsung Galaxy S3 GT I9300 Android smartphone can now be updated version of Jellybean 4.3 Android firmware. This all new version is dubbed as XXUGNA8. Just in case if you are waiting for the Kitkat 4.4.2 for Samsung Galaxy S3 GT I9300, then you might have to wait little longer for the same. This update brings in the much needed stability and also the battery life is quite improved if we go as per the leads. This update is pushed by OTA for selected counties. Earlier there was one more version of Jellybean 4.3 which got released which was XXUGNA7 but had some bugs related to the users who had Cyanogen Mod 9 as it crashed the Google Apps. Please note that this is the official firmware update released by Samsung and not the custom ROM firmware.

Jellybean 4.3

Note: This update won’t root the device or void the warranty in any manner.

Quick Pre Requisites:

  • All the data in your device needs to be backed up with the help of below mentioned steps manually and not with the 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

  • Head over to the path “Settings > Applications > Development > USB debugging” in your Samsung Galaxy S3 I9300 so as to enable the USB Debugging Mode.

Disclaimer: We should not be held responsible in any manner for any damage happened to your Galaxy S3 I9300 due to not following the instructions mentioned in the article.

Once you have backed up all the data in your device, you now will have to proceed to the next step where we have mentioned the detailed guide which will help you update the device.

Procedure to Update Galaxy S3 GT I9300 Android smartphone with XXUGNA8 Firmware:

  • Press and hold Home + Power + Volume down buttons to enter the device in the Download Mode. If your Galaxy S3 i9300 enters in the Normal mode, then you need to re try the process of entering the device in the Download Mode.
  • Connect your phone to the computer while keeping Odin opened in your computer. Once connected, you will see that the ID: COM section will turn Blue/ Green/ Yellow indicating that all the drivers are installed successfully. Please note that it will take around 2 -3 minutes for applying the update as
  • Click on “PDA” tab in the Odin to select the tar file which you got after extracting the firmware package to click on “Start” in Odin.
  • Once clicked on “Start”, the process of updating the firmware will start. The whole process of firmware update will take around 3 -4 minutes and once done, the phone will be rebooted automatically.
  • As soon as the device gets rebooted, you can then head over to the Settings > More to check out the current version details in About Phone section where it will be mentioned as XXUGNA8 Jellybean 4.3 Android OS.
  • If Google Apps gets crashed after installing, you need to turn Off the device so that it can be entered in the recovery mode. Press and hold Home + Power + Volume Up buttons to enter the device in the Recovery Mode. If your Galaxy S3 i9300 enters in the Normal mode, then you need to re try the process of entering the device in the Recovery Mode.

Note: If at all your Galaxy S3 I9300 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 and repeat the whole process again.

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

You have now successfully updated the latest version of Jellybean 4.3 Android firmware in your Samsung Galaxy S3 I9300 Android smartphone. We will very soon be coming with the rooting process which will allow you to install many custom ROM firmwares based on Kitkat 4.4.2 firmware.

  • furqan

    i’m unable to use network after updating the software, i’m unable to use mobile network,

  • anwar

    my phone is 4.4 kitkat cyanogen can i get this update

  • Michael Z.

    It’s not pure version – it’s for Fleur variety. It also drains up battery pretty fast, in addition to adding Russian (or Uzbek?) bloatware. Need a clean one!

  • Zacson Skaria

    Hi Pradeep,

    Any new features / enhancements ? How is the battery life GML3. I recently switched to GML3 and just wanted to decide on whether I should change to GNA8.


  • mags

    Successfully updated but now has 8 apps in Uzbekistan language I dont understand.? How can it be turned to english?

    • Pradeep Neela

      it supports english language

      • mags

        Phone is all english, just dont know how to change these few apps to english.
        I now had hidden these apps. One is for instance “Beauty” other one I gathered from pics is weather. Other one look like some bying/marketing thing. But I understand nothing at all. Can’t uninstall it. ? Thanks.

  • Roberto

    Hello, I’m from Peru. Can I download the same?

    • Pradeep Neela

      Hey Roberto, hope you are doing good! This update supports your country

  • Arthur

    Hey, I’m from Peru. Can I download the same?

    • Pradeep Neela

      Yes arthur you can download for your Peru phone

  • Arthur

    Is for all the countries?

    • Pradeep Neela

      yes it is for all countries

    • Pradeep Neela

      But it should only be applied to the International unlocked version and not to the locked version

  • joseph

    Is for all the countries?

  • Thor Hedderich

    Updated my S3 to Jellybean 4.3 XXUGNA8 Android Package and now I am not able to make phone calls, I receive a message telling me the phony is not registered to the net

    • Pradeep Neela

      have you updated on the locked version or flashed it on the unlocked version?