It looks like some Nokia Lumia 920 users in Germany have experienced random reboots when using the smartphone.
The issue seems to affect some HTC 8X users as well, which might suggest this is a software mishap that might be fixed via an update.
The folks over at WPArea.de report that the rebooting issue might be solved by setting the phone on 3G network and not LTE, which seems to be causing the problem.
Apparently, Nokia is aware of this problem and is p... (read more)