Recently Google announced Android 4.2 Jelly Bean and although many people did not give much importance that has been brought by new improvements for both smartphones and tablets because of new update. Latest version of Jelly Bean not only have the new system of rapid access to settings from notifications, writing gestural-Swype-like, Photo Sphere and improved Google Now, support for multiple accounts Miracast and tablets.
Google updates its devices gradually the first being the newly launched Nexus 4 and followed by Galaxy Nexus, the tablet Nexus 7 and predecessors. But if you are looking for how to install Android 4.2 in Nexus 7 and Galaxy Nexus then you are at right place.
However for these devices OTA update of Android 4.2 is expect only for the odd device. If you want to update your smartphone or tablet before you get the update you can follow these steps.
Requirements for Android 4.2:
• Galaxy Nexus or Nexus GSM version 7
• Rooted System
• CWM Flashable ZIP Android 4.2 (Download it for Galaxy Nexus GSM here for Nexus 7 here )
• ClockworkMod Recovery installed (you can install it from ROM Manager) and (you can do that using ROM Manager)
Steps to upgrade | how to install Android 4.2 in Nexus 7 and Galaxy Nexus 7
• Step 1 : Download the update OTA ( GSM Galaxy Nexus / Nexus 7 )
• Step 2 : Transfer the ZIP to the root directory of the internal memory of your device
• Step 3 : Restart your device in recovery mode, either ClockworkMod Recovery or any custom recovery.
• Step 4 : Select Wipe Data / Factory Reset, Wipe Cache and Wipe Dalvik Cache.
• Step 5 : Go back and select “install zip from SD card “. Choose the upgrade package you recorded in the internal memory.
• Step 6 : Wait for the update finishes and reboots the device when completed. And will boot on Android 4.2
In this simply ways you can simply install Android 4.2 in Nexus 7 and Galaxy Nexus.