Google today started rolling out Android 4.2.2 update for Galaxy Nexus, Nexus 7 and Nexus 10 devices. We have already posted the manual update instructions for Galaxy Nexus, it is now time for update instructions for Nexus 7 Wi-Fi and Nexus 10 tablets.
Both the devices can be updated using two different methods.
First, download update file:
Method 1: Using custom recovery
If you already have a custom recovery like TWRP or CWM installed on your Nexus 10 or Nexus 7 Wi-Fi tablets, you can download the update files using the above links, save it to your Nexus 7 or Nexus 10. Boot in recovery, apply the update file and you are done.
If you don’t already have a custom recovery, you can also update your tablets using a temporary recovery. Download Nexus Root Toolkit, open it, make sure you have necessary drivers installed and have transferred the downloaded update file to your tablets. Go to advanced utilities; choose the option for temp CWM. Your tablet will boot in recovery, apply the update file and you are done.
Method 2: Using ADB Sideload
First make sure you have the latest ADB version installed on your computer, else install it. Now download the update file and put in a folder.
Reboot your Nexus 7 or Nexus 10 tablet while holding the Volume Down button. You will see the fastboot menu and “Start”, use Volume Up button to navigate to “Recovery” and then use the power button to select it.
You will see an Android with a red exclamation icon, press Volume Up and Power buttons together, and you will be taken to a new menu. Go to “apply update from ADB” and select it.
Now, connect your Nexus 10 or Nexus 7 tablet to your computer using USB cable.
Open command prompt in the same folder where you have downloaded the update file. In windows, you can press shift and right click, it will show the option “open command window here”.
Enter the following command:
[For Nexus 7 Wi-Fi] – adb sideload 6ece895ecb23.signed-nakasi-JDQ39-from-JOP40D.6ece895e.zip
[For Nexus 10] – adb sideload eaef14432ff5.signed-mantaray-JDQ39-from-JOP40D.eaef1443.zip