Update Nexus 4 to KRT49H Android 4.4.2 KitKat OTA Official Firmware–How To Guide

Google rolled out new KRT49H Android 4.4.2 KitKat firmware update (OTA) to Nexus 4 recently. This KRT49H Android 4.4.2 KitKat update comes with various software fixes. If you yet to receive an OTA update then you can always download the original firmware and flash it manually. The zip file that we added in download section can be flashed using both stock as well as custom recovery (CWM/TWRP). However, you can only flash it if you are using unmodified version of earlier firmware which is KOT49E Android 4.4.1 KitKat (read: Update Nexus 4 to KOT49E Android 4.4.1 KitKat OTA Official Firmware–How To Guide). Unmodified means, you didn’t remove any system file. You may have a rooted device with custom recovery installed. To learn how to flash this KRT49H Android 4.4.2 KitKat firmware update, continue reading this guide to know how to update Nexus 4 from KOT49E Android 4.4.1 KitKat to KRT49H Android 4.4.2 KitKat firmware.

Root Guide: How To Root Nexus 4 On Official Android 4.4.2 KitKat KRT49H–Easy Guide


This tutorial is only for Nexus 4. Don’t try this guide on any other Android device. Also, we are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.  

Pre Requisites:

1. Backup your device data. You can follow our ultimate backup guide.

2.  Make sure your device have at least 60% battery power. You can install an app like Battery Notifier BT Free on your Android device to check it easily.

3. You already have USB Driver Installed for Nexus 4 in your PC. [Download USB Drivers]

4. Make sure USB Debugging is enabled otherwise you won’t able to transfer file between PC and Nexus 4. [Guide].

If you done everything that we mentioned above then you are ready to follow step-by-step guide on how to install KRT49H Android 4.4.2 KitKat firmware update on Nexus 4.

File Required(Download by clicking on it)
  1. KRT49H Android 4.4.2 KitKat firmware update For Nexus 4

How to Install KRT49H Android 4.4.2 KitKat on Nexus 4

  1. Connect your device to PC using USB cable and then copy downloaded file to the SD card of your device. Important: Don’t extract any files.
  2. Disconnect USB and then turn off your Nexus 4.
  3. Now, boot into recovery mode. Press and hold Volume Down + Power key together and release the Power key once the Google logo appears, but keep holding the Volume Down key. You will be in Bootloader mode now. Press Volume Down two times so that Recovery option appears, and then press Power key to reboot into recovery mode. Use Volume keys to browse between options in recovery while Power key to select an option. Alternatively try this: Recovery Mode without Key Combination.
  4. [If using CWM recovery] Perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back into your previous ROM. To perform a backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup is complete.
  5. Select install zip from sdcard, then select choose zip from sdcard. Now, locate the KRT49H Android 4.4.2 KitKat Zip file that you copied earlier in Step 1 and select it by pressing Power button. Confirm installation by selecting Yes – Install _____.zip on the next screen. The ROM installation will begin.
  6. When installation is completed, go back to the main recovery menu and select reboot system now to reboot your Nexus 4 and boot up into KRT49H Android 4.4.2 KitKat firmware. 
  7. Returning to Previous ROM [in case using CWM recovery]: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.
Congrats! KRT49H Android 4.4.2 KitKat firmware update is now installed and running on your Nexus 4.