Upgrade Galaxy S3 I9300 to UBDLJ2 Android 4.1.1 Jelly Bean Brazil Official Firmware

Samsung has started their another round of Android 4.1.1 Jelly Bean software updates from Brazil. We just wrote about Android 4.1.1 build UBDLJ1 update and now UBDLJ2 Android 4.1.1 Jelly Bean officialfirmware download is available viaSamsung KIES, but for those who have not received a notification on the phone or KIES update is not available, TeamAndroid.com has a tutorial for you to easily update Galaxy S3 I9300 to UBDLJ2 Android 4.1.1 using our tutorial below manually. I9300UBDLJ2 is an unbranded firmware for unlocked Galaxy S3 I9300. 

As you continue reading below, we will guide you through the entire process of how to install UBDLJ2 Android 4.1.1 Jelly Bean on Galaxy S3 I9300 using ODIN. Don’t forget to backup all your apps and personal data because we don’t want anyone losing their data during the installation process. This is an official firmware update by Samsung, not a custom ROM. Let’s continue with the tutorial now.

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) 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.

Make sure you have installed all your USB drivers for the Samsung Galaxy S III to connect it with the computer. Download Samsung Galaxy S3 USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.

1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. (optional, when updating via ODIN).

2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. 

3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:

Now, let’s proceed with the tutorial on the next page and update Galaxy S3 I9300 to UBDLJ2 Android 4.1.1 official firmware.

instructions guide on how to update Samsung Galaxy S III to Android 4.1.1 UBDLJ2. If you are used to installing official updates through ODIN on Samsung Galaxy devices, then this should not be any different for you. There is a small tricky part to perform as well. We have given that at the end after flashing with ODIN.

Please read every line carefully and make sure you read the tutorial once before actually performing on your device.

To Remember:

• This tutorial is only for Samsung Galaxy S3 I9300. Please don’t try this on any other variants of the phone.
• I9300UBDLJ2 is an official firmware by Samsung for the Galaxy S3 I9300.
• Make sure you backup all your data in your phone before proceeding.

Rooting Warning: This is an official Android 4.1.1 build UBDLJ2 update for Galaxy S III I9300, which means you will lose root as soon as you install this update. You will again have to root Galaxy S3 to gain full system access and be able to install root apps again. 

Complete Step-By-Step Instructions:

Step 1 - Download Android 4.1.1 I9300UBDLJ2 for Galaxy S3 to your computer and extract the zip file.

Step 2 - Download ODIN v1.85 which will help you to install Android 4.1.1 on Samsung Galaxy S3 I9300.

Step 3 - Switch OFF your phone. Now go to Download Mode. How? Press and hold the Volume Down + Home buttons together, and then press the Power button till you see the construction Android robot and a triangle. Press Power again to confirm to enter into Download Mode.

Step 4 - Make sure you have your Galaxy S3 USB drivers installed on your computer.

Step 5 - Open ODIN on your computer. Connect your phone to your computer while your phone is in the Download Mode.

Step 6 - If your phone is connected successfully, one of the ID:COM boxes will turn yellow with the COM port number. This step might take some time.

Step 7 - Now select the files that you have to flash/install on your phone. These files are to be found from the extracted files in Step 1.

• Click on ‘PDA’ and select file with ‘CODE’ in its name.
• Click on ‘Phone’ and select file with ‘MODEM’ in its name. Ignore this step if there is no such file.
• Click on ‘CSC’ and select file with CSC’ in its name. Ignore this step if there is no such file.
• Click on ‘PIT’ and select the .pit file. Ignore this step if there is no such file.

Step 8 - In ODIN, check the Auto Reboot and F. Reset Time options. As for the Re-Partition option, check it ONLY if you selected a .PIT file in the above step.

Step 9 - Now click on the Start button in ODIN. Installation process will start and would take a few minutes to complete.

Step 10 - After the installation is completed, your phone will restart. After you see the home screen, unplug your phone from the computer.

That’s it. Your Samsung Galaxy S III has now been updated to Android 4.1.1 build UBDLJ2 firmware update. Go to Settings > About phone to verify.

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