If your Galaxy Nexus has already received the Android 4.2.2 Jelly Bean update as an OTA (over the air) package, you can simply install the new firmware version. In case you are yet to receive any such update, click here for the steps to manually flash your device with the help of the ZIP package from the Internet.
However, if your device is currently running on the new Android 4.2.2 Jelly Bean and you are looking for a root method for it, the tutorial explained below will serve you the best.
As Team Android noted, the rooting process includes ClockworkMod (CWM) Recovery 220.127.116.11 as the custom recovery and SuperSU v1.04 as the rooting package.
Below are the steps to root Android 4.2.2 Jelly Bean on the Galaxy Nexus I9250. But before going ahead, the users must note that although the procedure is a tested one, IBTimes will not be held responsible for anything that goes wrong. The users should proceed at their own risk.
- The Galaxy Nexus I9250 should be running on Android 4.2.2 JDQ39 firmware. Go to Settings > About phone, and check the existing build number.
- USB drivers for the Galaxy Nexus must be installed properly in the computer. [Download]
- Enable USB debugging mode.
- Backup all your data, apps and settings before you proceed.
- Make a Nandroid backup of your previous phone set up.
- The device must have at least 80 percent of battery power.
In addition, this tutorial is for factory unlocked Android phones. Therefore, it should not be tried on phones that are locked to a carrier.
Steps to Follow
Step 1: Download SuperSU v1.04 (UPDATE-SuperSU-v1.04.zip) for Galaxy Nexus on your PC.
Step 2: Connect and mount the Galaxy Nexus USB memory on your computer using USB cable.
Step 3: Copy and paste the SuperSU v1.04 zip file on your SD card. Ensure that the file is in the SD card root, not in any other folder.
Step 4: Switch off the phone.
Step 5: Download CWM 18.104.22.168 (recovery-clockwork-touch-22.214.171.124-maguro.img) and save it on the android-sdk-windowsplatform-tools directory on the computer.
Step 6: Go into Fastboot/Bootloader Mode on Galaxy Nexus. To do this press the Volume Down and Power keys together for a few seconds till a text appears on the screen.
Step 7: Go to android-sdk-windowsplatform-tools directory and open Command Prompt. Now run the following command:
fastboot flash recovery recovery-clockwork-touch-126.96.36.199-magu
Step 8: Select recovery from fastboot menu and you’ll be taken to the newly-flashed ClockworkMod recovery.
Step 9: In ClockworkMod recovery, scroll down to “flash zip from SD card” and press the power button to select it.
Step 10: Press the Power button again and select “choose zip from sdcard”.
Step 11: Use Volume keys to navigate to UPDATE-SuperSU-v1.04.zip. Select it by using the Power button and flash it.
Step 12: Once flashing is complete, reboot the device by selecting “reboot system now” from the Recovery menu. The first boot may take some time.
[Source: Team Android]
After the reboot is done, you would have root access on your Galaxy Nexus running Android 4.2.2 Jelly Bean.