I got non-stop reboots when I would put my computer on my desk at work. The desk is metal and I am assssssoooooooooming it was because of some magnetism causing the internal magnetic "receptors" to get confused. I got a block of wood (2x4!!!) as a desk cradle. haha, cradle. The bootloop went away.
One day while perusing this forum someone mentioned the carhome.apk. I thought to myself, "self, delete that file."
Oh yeah, I am a dork. Anyway...
I deleted that file and now my phone can be safely placed on my metal desk at work and it no longer bootloops.
Now, I have
gotten random reboots also. I have gone for at least 2 weeks now without one until today. The temperature outside is easily 93° and I was on a bicycle ride. I was using 'my tracks' and getting multiple texts. Have you ever texted while riding a bike? WAY harder than driving and texting. hahaha. I got back home and rolled into my garage. It was easily 105° in there. I got a text while standing in the garage. I took my phone out of the handlebar holder and it rebooted.
I would say with my most uneducated brain that I had a heat related reboot.