I purchased my Nexus 7 32GB last weekend and have really enjoyed it. I have no issues with it except when I get the notification of the 4.2.1 upgrade. I begin the install process and then the green Android robot falls on his back and there is a red triangle over his abdomen. The device seems to hang for a few minutes and then it reboots and it is still running 4.1.2. I've attempted this update everytime that I am prompted to install it but the update always fails. Does this mean that there is something wrong with my Nexus? Should I take it back to the store and exchange it? I purchased it at Office Depot in a sealed box. It was the last Nexus 7 in their store. Or is this a common issue that will eventually get sorted out on its own?