My Nexus 10 has been rebooting on its own since I got. It only does it while it's in idle, not while using it but it's annoying nonetheless. I thought Android 4.2.1 fixed these issues but I was wrong. So I kept digging for a solution. Found one...... a workaround.
Issue 40140 - android - Nexus 7 / Android 4.2 : Sporadic reboots due to *** FATAL EXCEPTION IN SYSTEM PROCESS: ActivityManager - Android - An Open Handset Alliance Project - Google Project Hosting
Someone has found that the bug is most likely related to a locations. Scroll down and the guy says to turn off all location settings. That's what I did. I unchecked all the settings (GPS included) and switched the switch to off. Of course this means Google Now won't work (which sucks) but it seems to have fixed the reboot when in idle issue.
I have not had a reboot since I did this so I'm pretty happy. This seems to also work with the Nexus 7 so for those having problems there; give it a try. Google Now is lost for the time being but I do think it's worth giving it up until Google crushes all these bugs. I'll post back in here if my Nexus 10 randomly reboots again just to be clear that this workaround actually works.
So just give it a try.
Off Topic - Wifi disconnecting randomly is also a huge pain that I have not found a workaround or solution for, I really hope Google gets this bug with it's next update.
Issue 40140 - android - Nexus 7 / Android 4.2 : Sporadic reboots due to *** FATAL EXCEPTION IN SYSTEM PROCESS: ActivityManager - Android - An Open Handset Alliance Project - Google Project Hosting
Someone has found that the bug is most likely related to a locations. Scroll down and the guy says to turn off all location settings. That's what I did. I unchecked all the settings (GPS included) and switched the switch to off. Of course this means Google Now won't work (which sucks) but it seems to have fixed the reboot when in idle issue.
I have not had a reboot since I did this so I'm pretty happy. This seems to also work with the Nexus 7 so for those having problems there; give it a try. Google Now is lost for the time being but I do think it's worth giving it up until Google crushes all these bugs. I'll post back in here if my Nexus 10 randomly reboots again just to be clear that this workaround actually works.
So just give it a try.
Off Topic - Wifi disconnecting randomly is also a huge pain that I have not found a workaround or solution for, I really hope Google gets this bug with it's next update.