How to Install Android 4.1.1 Jelly Bean Official Update on Nexus S

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Android 4.1.1 (JRO03E) is now available for the Nexus S. Yes, even before the official update for the Galaxy Nexus phone. Google has started rolling out the Android 4.1.1. Jelly Bean update starting from Australia, Pakistan etc.

In this tutorial, we will tell you how to install Android 4.1.1 JRO03E on Nexus S which are rooted and for non-rooted stock Nexus S devices as well. Make sure you read all the step-by-step instructions carefully before performing it.

Nexus S Android 4.0 software update

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 Nexus S to connect it with the computer. Download Samsung Nexus S 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:

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 your Nexus S to Android 4.1.1. Please follow the correct tutorial.