Tips & Tutorials

Root Nexus S on Android 4.1.1 Jelly Bean JRO03E Official Software Update

Android 4.1.1 (JRO03E) for Nexus S has been released today and is now available for download. We have written a complete tutorial on to install Android 4.1.1 Jelly Bean on Nexus S earlier today with complete guide. We are going to do a similar guide on rooting your Nexus S on Jelly Bean official software update.

This tutorial explains and guides on howΒ  to root Nexus S on Jelly Bean Android 4.1.1 official update. We have made sure to include all the steps and you don’t run into possible errors or problems during the tutorial. We strongly recommend you follow the few precautionary steps below to backup your data before proceeding.

Nexus S Android 4.0 software update

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 πŸ˜‰

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 β€” 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 root Nexus S on Android 4.1.1 Jelly Bean update.

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.


  • hi πŸ™‚ thanks a lot for this guide. is the most easy-to-use one, but i’ve met a couple of problems anyway.
    1. when i go to android-sdk-windows folder i find two folders, one named platforms and the other one tools. Should i create the platforms-tool folder anyway? if i don’t have to, where should i put fastboot and clockwork recovery?
    2. actually, i tried the entire process putting fastboot and clockwork into the folder platforms. i gave the command but i only receive this message “” and nothin more happens.
    Can somebody help me please πŸ™‚
    Ps: i’m italian, so please forgive my bad usage of the english language πŸ™‚

  • when i type in the command and press enter, a window pops up saying “The program cant start because AdbWinApi.dll is missing from your computer. Try reinstalling the program to fix this problem”. But I checked and that file isnt missing, and even took the liberty of downloading it from elsewhere and replacing it and still no luck. I even tried reinstalling the program and it still won’t work. help?

  • Thanks very much for this tutorial. I had a little trouble but it was because i didn’t have installed the Samsung USB drivers on my computer πŸ™‚

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