Her phone doesn't do it.
I have evidence that Android phones can secretly reboot without resetting the uptime counter to zero. Unless one is constantly watching the phone, it could have restarted while nobody was watching.
If Google made boot.log available/visible on Android phones, we can verify.
Sent from my DROIDX using DroidForums
I'm sorry but this has to be the stupidest comment I have ever seen on this forum. "evidence", "secretly reboot", really....? C'mon now.