Install XXDLI5 Android 4.1.1 OTA Test Firmware on Galaxy S3 I9300

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There you go! Another Galaxy S3 Jelly Bean test firmware has released. XXDLI5 Android 4.1.1 Jelly Bean OTA firmware can be installed on Galaxy S3 I9300 using the tutorial we have written below. Remember, this is just an OTA update (not a full fimrware) because of which, you will need to install I9300XXBLG8 as the base firmware first and then install the new I9300XXDLI5 Jelly Bean OTA firmware update. We have the full tutorial below as you read this post and also a tutorial to root XXDLI5 firmware.

As you continue reading this post, we will guide you through all the steps of installing XXDLI5 Android 4.1.1 Jelly Bean OTA firmware on Galaxy S3 I9300. Don’t forget to backup all your data as given below as a precaution. Jump over to the next page for XXDLI5 firmware if you already have Android 4.0.4 XXBLG8 installed. Let’s continue with the tutorial now.

Samsung Galaxy S III - Pebble Blue

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 ;-)

UPDATE! An easier tutorial is also now available. Just flash with ODIN and done! Go here for that! Or you can continue with the complete tutorial below.

NOTE: Since this is a leaked firmware, make sure you know that after installing this firmware update, your can get FC errors, boot loops, several other bugs, apps might not work or worse, your phone might not boot. To fix, you will have to reinstall stock firmware.

Android 4.1.1 XXDLI5 Firmware Details:

Base Firmware: I9300XXDLI5 (4.1.1)
Region Europe
Country: United Kingdom
Carrier: Unbranded
Build Date: 9th September 2012
Modem: XXDLI5
CSC: OXADLI5
Change List:

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. See here: How to Enable USB Debugging. (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. See here: How to Check Battery Percentage.

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:

Data can also be backed up using Samsung KIES for their devices, but if you backup data manually, you get more options what top 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.

4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.

Now, let’s proceed with the tutorial on the next page and update Galaxy S3 I9300 to XXDLI5 Android 4.1.1 Jelly Bean official OTA firmware.