Posted by Arnie on July 28, 2012
One of the reasons I love Nexus devices is that Google itself takes care of updates. Another advantage is access to factory images which allows me to go back to 'as I bought it' condition.
Google has now released the factory images for Android 4.1 aka Jelly Bean. So, if you messed up your system by using custom ROMs you can easily go back to stock Android.
These images not only allows current Jelly Bean users to restore their phones but also allows other users who are still waiting for Jelly Bean on their Nexus devices to upgrade with greater ease.
You can check out the images for your device on this page. Google has, as usual, also published detailed instructions on how to use these images.
