Root Galaxy Nexus I9250 Android 4.2.1 JOP40D Jelly Bean and Install CWM Recovery
Just as we wrote about the Android 4.1.2 OTA update for Galaxy Nexus I9250, we now have a full tutorial to root Galaxy Nexus Android 4.2.1 with a complete tutorial at Team Android. You will be able to get your root back without much hassle. You can easily read about how to root Galaxy Nexus I9250 on Android 4.2.1 JOP40D Jelly Bean in the tutorial below. Why should you root? Read: Benefits of rooting an Android device. Installing the latest CWM recovery is also a part of our tutorial along with root access for your phone.
As you continue reading this tutorial, we will tell you how to root Android 4.2.1 JOP40D on Galaxy Nexus I9250 with complete steps and how to flash custom recovery on your phone. Don’t forget to read the various backup tips and other important Android tips for your phone below. We will use ClockworkMod recovery as our custom recovery and SuperSU as our rooting package. Read our list of the essential root apps available! For more details, continue reading. Your Galaxy Nexus should be on Android 4.2.1 JOP40D for this tutorial. Let’s get on with the tutorial now.
Disclaimer:All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial 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 
Root Galaxy Nexus Android 4.2.1 JOP40D Details:
Android 4.2.1 JOP40D OTA update has just been released for the Nexus 4, Nexus 7, Nexus 10 and Galaxy Nexus. And with that, you can now also root Galaxy Nexus on Android 4.2.1 OTA update. Please go to Settings > About phone, and check your existing buid number. Your phone should be already on Android 4.2.1 JOP40D firmware before before proceeding to the root method.
Samsung Galaxy Nexus USB Drivers
You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung Galaxy Nexus properly. If not, you can download the latest official drivers from our Android USB Drivers section here:
Download Samsung Galaxy Nexus USB drivers!
Backup and Other Important Tips
Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:
Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:
- Backup your Apps. How? –> How to Backup Android Apps.
- Backup your SMS messages. How? –> How to Backup/Restore SMS Messages.
- Backup Contacts, Gmail and Google Data. How? –> Sync with Google Sync.
- Backup Call History. How? –> How to Backup Call History.
- Backup WhatsApp Messages. How? –> How to Backup/Restore WhatsApp Messages.
- Backup APN Settings: GPRS, 3G, MMS Settings. How? Note down everything from: Settings > Wireless & Networks (More…) > Mobile networks > Access Point Names.
Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to 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.
If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.
A few more optional tips that you should remember:
1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.
2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?
4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.
If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!
All set and ready? Good. You can now proceed with the tutorial on the next page and root Android 4.2.1 JOP40D on Galaxy Nexus I9250 as well as install ClokworkMod recovery.
