I have a nexus 7 and I rooted to 4.2.1 and then I updated to 4.2.2 when it came out forgetting that I was rooted.... Is there a new root out for 4.2.2 or how can I become rooted again.
Be sure to install the OTA Rootkeeper and backup the root. Then when you update you should be able to restore root.
I am pretty sure you should be able to root again using almost the exact same method as before, but check at Nexus7Nexus10.net or the Nexus 7 section of xda.
OK ya I figured it out the toolkit I used for 4.2.1 came out with an update I just plugged in my nexus 7 re deleeted the stock drivers and just clicked on root my device and the downloaded drivers still work