The Android 4.1.2 update has started rolling out to Nexus 7 tablets around the world. But if your tablet has yet to receive the update, then don't despair -- we've got a quick walkthrough that'll get you updated in a few minutes, assuming you've got a little experience with a command line.

Note that this is for stock Nexus 7 tablets, and for people who want to update without really doing any real hackery, but don't mind a little command line work. Nothing we do here is permanent, other than the update itself. If you've already flashed a custom recovery, you should be able to update manually using that, instead of our method. And with that...

Caution: This guide is intended for technically proficient users only. Proceed at your own risk. Dragons ahead, etc.

The prerequisites

A completely stock Nexus 7 running Android 4.1.1, build JRO03D. (Check under Settings > About device; if you have a different build number, you may need a different update package.)

Our zip file containing ADB executables for Windows, Mac and Linux.

The Android 4.1.2 update package from Google. (31MB)

Check past the break to see the full manual update process.