Tips & Tutorials

Update Galaxy S3 I9300 with Android 4.1.2 AOKP Milestone 1 Jelly Bean Custom Firmware

Android 4.1.2 AOKP Milestone 1 Jelly Bean custom ROM is now available for the Samsung Galaxy S3 I9300. Android 4.2 is just around the corner and we are sure AOKP will be one of the first few to get it for the Galaxy S3. Officially, Samsung has not given out any word on when will they release the official Android 4.1.2 software update for the Galaxy S3 as they are still slowly rolling out the Android 4.1.1 firmware. You can update Galaxy S3 I9300 to Android 4.1.2 AOKP Milestone 1 Jelly Bean custom firmware using the tutorial below.

As you continue reading below, we will guide you through the entire process of how to install Android 4.1.2 AOKP Milestone 1 Jelly Bean on Galaxy S3 I9300 with complete steps. Please make sure you backup all your data as given below because this tutorial will wipe your data. Remember, this is a custom ROM, not an official firmware update by Samsung. Let’s get to the tutorial now.

Samsung Galaxy S III GT-I9300

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 4.1.2 AOKP Milestone 1 Jelly Bean Features:

  • Adjustable NavBar width for Tablets
  • Allow “Vibrate on Touch” behavior for Slide unlock
  • Toggles can be hidden like in ICS – long press on the Settings button!
  • Clickable (short & long configurable) Clock and Calendar in the Notification Slide

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 Android 4.1.2 AOKP Milestone 1 Jelly Bean custom 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.

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