Tips & Tutorials

Update Galaxy S3 I9300 to XXUGMJ9 Android 4.3 Jelly Bean Official Test Firmware

Samsung Galaxy S3 I9300 has received a leaked firmware update XXUGMJ9 Android 4.3 Jelly Bean and is now available for download for manual installation. Samsung has still not started rolling out the official Android 4.3 firmware for the Galaxy S3, but we are expecting it to come out soon as the test firmwares are now available. I9300XXUGMJ9 firmware is an official test firmware by Samsung so it doesn’t require a custom recovery like CWM. You can easily update Galaxy S3 I9300 to XXUGMJ9 Android 4.3 official firmware and also root this firmware!

As you continue reading below, we will guide you how to install XXUGMJ9 Android 4.3 Jelly Bean on Galaxy S3 I9300 using ODIN, tell you how to backup your important data and have given some other important tips. Don’t forget to backup all your apps and personal data as a precaution. Wr don’t want anyone losing their data due to any issues. This firmware is completely unbranded, which means it can be installed on any international Galaxy S3 I9300 phone. We know you want to give it a try. Proceed below for the complete guide on how to install. Let’s continue with the tutorial now.

Samsung Galaxy S3 I9300 - XXUGMJ9 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 😉

UPDATE: Final and official XXUGMJ9 Android 4.3 is now available. Download now!

Android 4.3 XXUGMJ9 Firmware Details:

Model: GT-I9300
Country: Germany (Vodafone)
Version: Android 4.3
Changelist: 1902166
Build date: Sat, 26 Oct 2013 12:24:03 +0000
Product Code: VFG

ROOT TUTORIAL: How to Root XXUGMJ9 Android 4.3 on Galaxy S3 I9300 Official Firmware.

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 XXUGMJ9 official firmware update.