Update Nexus 4 to Android 4.2.1 CM10.1 Nightly Jelly Bean Custom ROM

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Android 4.2.1 CM10.1 Nightly Jelly Bean custom ROM releases have begun for the Nexus 4. This Android phone already comes with the latest Android 4.2.1, but many of you would like to have more features, added functionality and tons of system tweaks on your phone that would be otherwise not possible. If your Nexus 4 is rooted, we recommend you do try out CyanogenMod 10.1 nightly builds to see what is going to come in the final release. You can update Nexus 4 to Android 4.2.1 CM10.1 Nightly Jelly Bean custom firmware from the tutorial below. Your Nexus 4 should be already rooted and ClockworkMod recovery should be installed.

As you read further, we will guide you how to backup your important data, some other important tips and then tell you how to install Android 4.2.1 CM10.1 Nightly Jelly Bean custom ROM on Nexus 4 with complete steps and instructions. Don’t forget to backup your phone as you will have to wipe all your data during the installation process. Let’s get on with the tutorial now.

Android 4.2.1 CM10.1 Nightly Jelly Bean

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 ;-)

Android 4.2.1 CM10.1 Nightly Jelly Bean ROM Details:

There might be things not working, so please take note of this:

NOTE: Since this is a nightly build, make sure you know that after installing this firmware update, your Android device can get FC errors, boot loops, several other bugs, apps might not work or worse, your phone might not boot. To fix, you will have to reinstall stock firmware or any other stable custom ROM.

You might also want to read the following:

UPDATE: AOKP ROM based on Android 4.2.1 Jelly Bean is now available for this phone. Read the tutorial here!

UPDATE 2: CM10.1 with the latest Android 4.2.2 is now available for this Android phone. Read here for the tutorial.

LG Nexus 4 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 LG Nexus 4 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download LG Nexus 4 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:

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 go to the next page and update Nexus 4 with Android 4.2.1 CM10.1 Nightly Jelly Bean custom ROM.

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