I have had this strange behavior randomly happen in the last 6-8 weeks I would guess. It took a couple of times for me to figure out it was happening on disconnecting from my car, as I'm typically going straight from unplugging directly to my back pocket with the phone when I get out of the car. Once I pull the phone out of my pocket to use it, it asks for my pin since it restarted. I did do a factory reset of the phone and it still happens and still just as randomly. I did the factory reset about 5 days before the June feature drop and it's happened once after that as well. I'm sorta lost on what would be causing this. Any ideas?
I had a windows 7 desktop that I muddled through the process of setting up a dual boot with Ubuntu. I could not get certain programs to work that I needed to use for work, so just left that partition in place and went back to Windows 7. Partly because I'm not OS tech savvy and not certain how to remove it and partly because I have a new computer that is Windows 10 and is my daily driver now. The Windows 7/Ubuntu computer is now just sitting in the spare room running an RTL-SDR dongle using Windows 7 as an AIS feeder. I'd set that up on the Ubuntu partition but haven't had a chance to learn how to do that yet.