Prevent upgrade to 4.3 on rooted 4.2.2. device I have just rooted a Nexus 7 with Android 4.2.2. I now receive a notification for system upgrade to 4.3. I don't want to do this, probably ever, as I want to keep 4.2 for app testing purposes. In Settings > About tablet > System updates
and in there it says:
Android System 4.3 Update
[Restart &amp; Install]  

How do I prevent the upgrade, ie how to I get rid of that Restart &amp; Install button and to I prevent future upgrades &amp; notifications?
Go to this XDA-Developers thread and follow the instructions. You have to download an APK from there and install it as a system app.

[How-to] Disable OTA updates on Stock + Rooted ROMs - xda-developers