Recently, Android 4.4.1 KitKat update with build number KOT49E was released on various Nexus devices.

And currently, a new firmware update was unleashed for the Nexus 5, Nexus 4, Nexus 10. The official Android 4.4.2 KitKat update is also available on Nexus 7, both the 2013 and 2012 models. Moreover, those who are using the Sprint-powered Nexus 5 can already install the official Android 4.4.2 update on their smartphones.

Since the official Android 4.4.2 KitKat update is still very new, a changelog has not been provided online yet. However, few improvements were already noticed. And according to a list on International Business Times, some of the features found on the official Android 4.4.2 KitKat update include:

• Fix for clearing the VM Indicator
• Fix for delivery of the VM Indicator
• Various additional software fixes
• Security enhancements

For those interested to access the OTA files for the official Android 4.4.2 KitKat update, check out this post on IB Times.

Those who wish to install the official Android 4.4.2 KitKat update on their Nexus devices can follow the comprehensive guide provided on this separate article from International Business Times UK.

But before proceeding with the installation, there are certain requirements that need to be satisfied first to ensure a successful update process.

First, make sure that your Nexus device has at least 80 percent battery level before you install the official Android 4.4.2 update. This is to avoid power loss during the process due to emptied battery.

Second, the Debugging Mode on Nexus 4, Nexus 7, Nexus 5 and Nexus 10 should be enabled.

Third, create a backup of all the important settings and data stored on your Nexus device. Custom recovery tools such as ClockWorkMod or TWRP can be utilized when making a backup.

Fourth, the Android 4.4.2 KOT49H only works on Nexus devices. Using them on other smartphone models can brick the device and potentially damaged it.