Tips & Tutorials

Install Android 4.4 KRT16M on Nexus 5 KitKat Factory Image

Android 4.4 KRT16M KitKat factory image for the Nexus 5 was released just when the phone was announced and released by Google. This makes it easier for ROM developers and those who mess up their phones while modifying it to reinstall stock firmware if anything goes wrong. cThe exact Android 4.4 build is KRT16M for Nexus 5. You can manually update Nexus 5 to Android 4.4 KRT16M factory image from the tutorial below — and root Nexus 5 on Android 4.4. The only catch is that if this will be your first time playing around with a factory image, you might have to unlock your bootloader first before continuing – which means wiping all of your phone data.

As you read further, we will guide you how to install Android 4.4 KRT16M Jelly Bean software update (factory image) on Nexus 5 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. Your Nexus 5 can be on any Android version for this tutorial to work. Remember, this is an official factory image of Android 4.4 by Google, 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 ( 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 5 Android 4.4 KRT16M Factory Image Details:

Android 4.4 KRT16M factory image updates have been released for the Nexus 5. Other Google Nexus devices, Nexus 4, Nexus 7 and Nexus 10 will be getting this update in the coming weeks.

UPDATE: Android 4.4.1 KOT49E OTA update is now available for Nexus 5. Download here!

ROOT TUTORIAL: How to Root Nexus 5 on Android 4.4 KRT16M Jelly Bean Official Update.

If you plan on rooting this phone or are still confused for why to root Nexus 5, read: Benefits of Rooting Your Android Device.

LG Nexus 5 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 5 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download LG Nexus 5 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 continue reading below and update your Nexus 5 to Android 4.4 factory image.

Install Android 4.4 KRT16M on Nexus 5 Using Official Jelly Bean Factory Image

We have put together a detailed step-by-step instructions guide on how to install the official Android 4.4 Jelly Bean (KRT16M) on Nexus 5 using the factory image provided by Google. This tutorial is for beginners who are not used to playing around with official factory images by Google for their Nexus devices.

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 5.

Just To Remember:

  • This tutorial is only for LG Nexus 5 and I am not sure if it will work on the other variants of the Nexus 5 on other carriers.
  • Your phone can be on any previous Android version or even on a custom ROM. It doesn’t matter at all. This tutorial will still work for installing Android 4.4 Jelly Bean.
  • Enjoy Android 4.4 on your device and let us know your review about it!

NOTE: Installing Android 4.4 KRT16M Jelly Bean factory image will WIPE / DELETE / ERASE everything from your phone if your bootloader is not already unlocked. Please make sure you have a backup of all the data. Read: How to Backup Android Apps and Other Data.

Complete Step-By-Step Instructions:

Step 1 – Download Android 4.4 Factory Image (hammerhead-krt16m-factory-bd9c39de.tgz) for Nexus 5 on your PC, if you haven’t already.

Step 2 – Connect your Nexus 5 to your computer using the USB cable.

Step 3 – Please make sure Fastboot is configured and properly installed on your computer. How? See here: How to Set Up ADB and Fastboot with Android SDK.

Step 4 – Turn OFF your phone.

Step 5 – Get into the Fastboot/Bootloader Mode on your phone. 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 – Now extract the downloaded file anywhere in your computer. Go to the folder hammerhead-KRT16M and then copy/paste all the files to your Fastboot directory.

Note: If you followed our tutorial on setting up Fastboot on your computer, there is a 99% chance your Fastboot directory will be the platform-tools folder in your Android SDK directory.

Step 7 – From the factory image files in your Fastboot directory, do the following depending which OS you are on:

  • On Windows: Run the file “flash-all.bat”.
  • On Mac: Run the file “” using Terminal.
  • On Linux: Run the file “”.

Step 8 – That’s pretty much that you had to do for flashing the stock factory image on your Nexus 5. Now wait and watch as the process is completed — or follow the on-screen instructions on your phone if in case you have to unlock the bootloader.

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 with patience!

That’s it! Your Nexus 5 should now have the official Android 4.4 KRT16M Jelly Bean software update installed on your phone using the stock factory image from Google! Go to Settings >About phone to verify.

ROOT TUTORIAL: How to Root Nexus 5 on Android 4.4 KRT16M Jelly Bean Official Update.

Hit +1 or LIKE to thank us!

Have fun playing with the new Android 4.4 Jelly Bean. All the instructions are clearly given above, but if you have any issues, please let us know through Facebook, Twitter or Google+!

About the author

Haris Nadeem

He lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.

1 Comment

Leave a Comment