I've had this phone for about 6 months, no serious issues other than some battery life issues that were fixed with a factory reset a few weeks back. Since that factory reset everything has been great. But yesterday my phone started rebooting randomly from every few minutes to about 2 hours in between reboots is the longest it's gone since it started. I am running stock rom and launcher, rooted. Also still on 4.2.2 and not 4.4 because it won't let me update since I am rooted. I couldn't figure it out so I factory reset again tonight. After factory reset it is still rebooting randomly. I have only installed about 10 apps since reset, nothing I didn't have before the problems started. It doesn't restart only when in a certain app. Has restarted multiple times when I'm just on the home screen.
Any ideas of where to start looking to try to figure this out?