For those of you who might have bricked your Nexus 10 or want to return your Nexus 10 completely back to a factory firmware, here’s how to unroot/unbrick your Nexus 10 completely back to factory firmware. You can do this on Windows, Mac, or Linux.
Step 1. Hold down Power, Volume Up, and Volume Down button together for about 20 seconds until your Nexus 10 reboots into fastboot bootloader mode.
Step 2. Connect a microUSB cable from your Nexus 10 to your computer.
Step 3. Next, download stock firmware and uncompress. (You can use 7zip or