Four days after releasing the Android 4.4.1 KitKat firmware for Nexus devices, Google (NASDAQ:GOOG) rolled out the new Android 4.4.2 update on Monday with a set of bug fixes, making it one of the fastest firmware releases in the company’s history.

The firmware update with the new KOT49H build is available for all the latest Nexus devices, including the Nexus 4, Nexus 5, Nexus 10, and the 2012 and 2013 Nexus 7 tablets. The updates are rolling out over the air, so for users that are yet to receive the OTA update on their devices, they can install the new firmware by performing a manual upgrade.

Here is a step-by-step guide to install the updated firmware on the Nexus 5. But, before trying out the manual installation procedure, there are some vital aspects to keep in mind:

- Ensure that you have proper data backup.

- The device should be fully charged.

- The USB drivers for the device must be installed on the computer. [Download]

- Enable USB Debugging.

- The Nexus 5 needs to be running on either Android 4.4.1 KOT49E or Android 4.4 KRT16M (not rooted), which are the previous official updates.

NOTE: International Business Times will not be responsible for anything that goes wrong. Users should proceed at their own risk.


Step 1: Download Android 4.4.2 KitKat for the Nexus 5 to your computer.

- For Android 4.4.1 KOT49E users.

- For Android 4.4 KRT16M users.

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

Step 3: Copy the package onto your SD card.

Step 4: Turn off the device.

Step 5: Get into the bootloader mode by holding down volume up, volume down and power on the device until you see the Fastboot menu and START on top.

Step 6: Navigate to "Recovery mode" by using the volume up and down keys, and then press the power button to select it.

Step 7: Once you see an exclamation mark, hold down the power button, quickly followed by the volume up button. It will bring up the Recovery Mode menu.

Step 8: Now select “update from SD card” first, and then select the “” file using the Power button. The Installation process will now begin.

Step 9: Once the installation is done, the Nexus 5 will boot on its own. The first boot may take some time.

[Source: Team Android]

If you own a rooted Nexus 5, the installation process will be a bit different. For more details, click here.