Tips & Tutorials

How to Install Galaxy S3 I9300 ZNBLH3 Android 4.0.4 Official Firmware

Galaxy S3 (China) users have received ZNBLH3 Android 4.0.4 latest official firmware update. This firmware is also available on Samsung KIES servers, but you can use our tutorial below to flash this firmware manually on your Galaxy S3 I9300. You can continue reading below for our manual tutorial to install ZNBLH3 Android 4.0.4 on SGS3.

As you read below, we will guide you through the entire process of installing ZNBLH3 Android 4.0.4 on Galaxy S3 I9300 using ODIN flashing tool. Let’s continue with the tutorial below and don’t forget to backup all your data as given below. This firmware is for SGS3 bought from China only!

Samsung Galaxy S III - Pebble Blue

Disclaimer: All the tools, mods or ROMs mentioned below 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 4.0.4 ZNBLH3 Firmware Details:

Version: 4.0.4
Date: 2012-08-20

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 ZNBLH3 Android 4.0.4 official firmware.

About the author

Haris Nadeem

He lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.