Looks like we now have an official Nexus 4 Android 4.2.1 JOP40D OTA software update rolling out for everyone. And not just the Nexus 4, it is reported that the Android 4.2.1 OTA for Nexus 10 is also out. This latest OTA software update for the Nexus 4 and other devices is more of a bug fix update that caused the month of December to vanish from Android. The exact Android 4.2.1 build is JOP40D for Nexus 4. You can manually update Nexus 4 to Android 4.2.1 JOP40D OTA software update from the tutorial below and also root it. Your Nexus 4 should already be on Android 4.2 JOP40C firmware in order to install this OTA.
As you read further, we will guide you how to install Android 4.2.1 JOP40D Jelly Bean software update on Nexus 4 with complete steps and instructions, how to backup your important data, some other important tips. In case you have problems connecting your phone with the computer, make sure USB drivers are properly installed and read the tips below. Remember, this is an official OTA software update, not a custom ROM. 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 😉
Nexus 4 Android 4.2.1 JOP40D Official OTA Details:
Android 4.2.1 JOP40D OTA update has just been released for the Nexus 4 and Nexus 10. Samsung Galaxy Nexus Android 4.2.1 software update will be out very soon as well. There have been no features added. This is just a small bug fix OTA update.
If you plan on rooting this phone or are still confused for why to root Nexus 4, read: Benefits of Rooting Your Android Device.
UPDATE: Android 4.2.2 JDQ39 Jelly Bean is now available for the Nexus 4. For those who want to update to the latest Android software version, read the following:
- How to Update Nexus 4 to Android 4.2.2 JDQ39 OTA Official Software Update.
- How to Root Nexus 4 on Android 4.2.2 JDQ39 Jelly Bean and Install CWM Recovery.
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:
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.
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 continue reading below and update your Nexus 4 to Android 4.2.1 software update. If you have a rooted Nexus 4, head over to the next page directly for the complete tutorial.
Install Android 4.2.1 JOP40D OTA Official Update on Nexus 4 [For Non-ROOTED]
We have put together a detailed step-by-step instructions guide on how to install the official Android 4.2.1 Jelly Bean OTA software update (JOP40D) on Nexus 4. This tutorial is for beginners who are not used to install software updates manually.
Please make sure your phone fulfills all the requirements and you read the entire tutorial once before actually performing it on your device.
Disclaimer: Try this on your own risk. I’m not responsible if you mess up with your Nexus 4.
Just To Remember:
- This tutorial is only for Nexus 4 and I am not sure if it will work on the other variants of the Nexus 4 on other carriers.
- Your phone needs to be on Android 4.2 JOP40C (previous official update) which is NOT rooted and has stock recovery.
- Do not proceed if you don’t have Android 4.2 JOP40C installed.
- Make sure you backup all your data in your phone before proceeding.
Complete Step-By-Step Instructions:
Step 1 – Download Android 4.2.1 (625f5f7c6524.signed-occam-JOP40D-from-JOP40C.625f5f7c.zip) for Nexus 4 on your PC, if you haven’t already. Rename it to update.zip.
Step 2 – Connect and mount your Nexus 4 USB memory on your computer using the USB cable.
Step 3 – Now copy/paste the update.zip file to your SD card. Make sure the file is in the root (not in any folders).
Step 4 – Then turn OFF your phone.
Step 5 – Now to get in the Bootloader Mode. Turn ON the phone while pressing and holding the Volume Up + Volume Down + Power buttons till you see the Fastboot menu and START on top.
Step 6 – Follow the navigation instructions on the screen. Press Volume Up button several times till you see RECOVERY and press Power button to select it.
Step 7 – You will get an exclamation mark now. Again hold your Volume Up + Power buttons. You should now see the Recovery Mode menu.
Step 8 – Select update from SD card. Now select update.zip file and select it with the Power button. Installation should start now.
Step 9 – After the installation completes, the phone will boot now and it might take about 5 minutes to boot on your first time. So, please wait.
That’s it! Your Nexus 4 should have the official Android 4.2.1 JOP40D Jelly Bean software update installed on your phone! Go to Settings >About phone to verify.
UPDATE: You can now also root Nexus 4 on Android 4.2.1 JOP40D Firmware. Read the complete tutorial here!
Hit +1 or LIKE to thank us!
You Nexus 4 is rooted? Then go to the next page for the complete tutorial on how to install this Android 4.2.1 JOP40D OTA update on an already rooted Nexus 4.