Android 4.2.2 Factory Images for Nexus 4, Nexus 7, and Nexus 10 Officially Revealed. Google released the much- expected Android 4.2.2 Jelly Bean update, containing security improvements as well as Bluetooth-related bug fixes.
Android 4.2.2 factory images are now available for the Nexus 4, Nexus 7 (Wifi-only and 3G), Nexus 10 and GSM Galaxy Nexus (“yakju” and “takju” variants). As always, the files contain a complete backup of the base Android firmware for these devices.
One of the interesting takes here, some of the smartphones have several builds available. Some are going back to Android 4.0.4 and even 2.3.6, but in the case of the Nexus 4 — it is just Android 4.2.2 (JDQ39). While there are most likely some theories as to why that is, we should point out that the Nexus 10 and 7 sit in a similar position with just one version being available. Another exception is for the Wi-Fi only Nexus 7 which has 4.2.2 (JDQ39) and 4.2.1 (JZO54K) available.
When the Android 4.2.1 Jelly Bean update was officially rolled out, certain users have complained about the Bluetooth connections and certain network issues, depending on terminal and carrier.
Android 4.2.2 comes to fix all these bugs, also bringing some minor user interface improvements meant to enhance the operating system’s ergonomics.
It’s also recommended to install the Android 4.2.2 factory image for optimum stability and performance, and you might also find out that there are big differences between the factory image and the OTA update.
If you want to download the Android 4.2.2 factory image for your Nexus 4, Galaxy Nexus, Nexus 7, or Nexus 10 terminal, you can do it from Google Developers official website.