Tips & Tutorials

Update Galaxy S3 I9300 to XXUGNG3 Android 4.3 Official Firmware

Galaxy S3 I9300 can now be updated to the latest XXUGNG3 Android 4.3 firmware from Samsung. We are past the point where we hoped Samsung will release KitKat for this device soon, however Samsung is trying to come up with more maintenance builds such as this one to keep this phone reliable and practical. Moreover, for those who are interested can upgrade their phone with Android 4.4.4 KitKat custom ROM. You would be looking at general bug fixes and performance improvements with this update and not anything major. I9300XXUGNG3 is 100% official which is why you can find this on Samsung KIES and OTA (Over-the-air) update. Unfortunately, if you choose that path then you wont be able to get this update right now as Samsung takes a region strategy with firmware updates. Conveniently, through our guide, you can easily update Galaxy S3 I9300 to XXUGNG3 Android 4.3 official firmware and also root this firmware!

As we continue below, we will guide you through every step on how to install XXUGNG3 Android 4.3 Jelly Bean on Galaxy S3 I9300 using ODIN, which is the flash tool used in this and every Samsung mobile update guide, and also showing you how to backup your important data. Don’t forget to backup all your apps and personal data to assure safety. This firmware update has only released in Russia yet, but Samsung should be starting to roll out this update to other regions very soon. Apps on one side, personal data is even more important which is why we will remind you to backup each and everything before heading further. Let’s continue with the tutorial now.

Samsung Galaxy S3 I9300 - XXUGNG3 Android 4.3

Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

Android 4.3 XXUGNG3 Firmware Details:

Model: GT-I9300
Model name: GALAXY S III
Country: Germany
Version: Android 4.3
Changelist: 2713958
Build date: Wed, 16 Jul 2014 08:28:54 +0000
Product Code: DBT

Android 4.4.4 ROM: For those interested, you can now also install Android 4.4.4 KitKat ROM on the Samsung Galaxy S3 I9300. Read the tutorial here!

There are tons of useful articles and how-to guides on Team Android for this phone, but we think you might be interested in the following posts:

Previous Jelly Bean official firmware tutorials for Galaxy S III:

Samsung Galaxy S3 USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung Galaxy S3 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy S3 USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. You can now head over to the next page and update Galaxy S3 I9300 to Android 4.3 XXUGNG3 official firmware update.

About the author

Taimur Akmal

Devoted writer, enjoys developing code. Appreciates excellent food, exceptional coffee and great company. He is also into sublime design and nicely built cars.

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