Google Nexus S owners have already begun getting over the air updates for Android 4.1 Jelly Bean. People who have not yet received the automatic notification can not only manually update to Jelly Bean, but they can also root Jelly Bean on their Nexus S device.
In this guide, we shall help you in not only rooting the Jelly Bean OS onto your Nexus S but also in going a step further and installing ClockworkMod Recovery on your device. If you haven’t installed Jelly Bean on your Nexus S head over to our guide “How to install Android 4.1 Jelly Bean on Nexus S”
Before we get started, we must ensure a few things.
1. Android SDK is installed on your system. This is required to use fastboot.
2. The bootloader on your Nexus S should be unlocked.
3. You must have the most recent Nexus S touch version for the ClockworkMod recovery image.
4. Finally, you must have Simple Root from the “XDA developers” forum.
If your phone does not fulfill any one of these requirements, simply Google the relevant term and you shall get countless guides in how to complete that particular requirement.
Once you have the above four requirements cleared, you can move on to the actual step of rooting Android 4.1 Jelly Bean on your Google Nexus S.
Root Android 4.1 Jelly Bean and Install ClockworkMod Recovery
1. Transfer the Simple-Root-1.0.zip file to your phone’s SD card.
2. Rename the downloaded ClockworkMod recovery image file on your computer from recovery-clockwork-X.X.X.X-crespo.img to recovery.img.
3. Reboot into fastboot mode. Simply power off your phone, then press and hold the volume-up button and press the power button; you should not release the volume-up button till you see the FASTBOOT MODE screen.
4. Now connect your phone to your computer through USB.
5. Now open up a command prompt window on your computer and navigate to the folder where you copied your recovery.img. In this prompt window, type this command:
fastboot flash recovery recovery.img
6. Enter the Recovery option the fastboot menu. This will enter your phone in the ClockworkMod recovery. In this menu, simply select “install zip from sdcard” and then “choose zip from sdcard.”
7. Browse and select the Simple-Root-1.0.zip file.
8. Confirm the file’s installation by tapping Yes.
That is all there is to it. Once the installation finishes, you restart your phone and Jelly Bean is rooted onto your Nexus S.