Install XXDLH4 Android 4.1.1 on Galaxy S3 I9300 Jelly Bean Pre-Official Firmware

• Last modified: Tips

BOOM! I9300XXDLH4 is here! XXDLH4 Android 4.1.1 Jelly Bean ‘almost’ final firmware is now out for the Galaxy S3 I9300. This firmware comes after the JB leaked firmware which came online two days ago. You can now download and install XXDLH4 Android 4.1.1 on Galaxy S3 I9300, Jelly Bean software update.

As you continue reading below, we will guide you through the entire process of installing XXDLH4 Android 4.1.1 on Galaxy S3 I9300 using ODIN. Don’t forget to backup all your data as given below. I9300XXDLH4 (JRO03C) is a beta ROM and is completely unbranded. Any I9300 (unlocked) user can install this ROM. Let’s continue with the tutorial.

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 ;-)

Android 4.1.1 XXDLH4 Firmware Details:

PDA: I9300XXDLH4 is based on Android 4.1.1
CSC: I9300OXADLH4
MODEM: I9300XXLH1
Build Date: August 14, 2012

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.

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 XXDLH4 Android 4.1.1 official firmware.