I got simular problems, each morning when i unplug my 1520 from the charger (usb or wireless plate) my phone works for a few seconds and then completely freezes as in the movie.
Does not respond at all, the only thing which i can do is a soft reset (vol_down+power).
The phone reboots and all works fine again, no problems the wholeday.
Problem returns the next morning when i charge it overnight...
Tried to reset, disable glance (have no cortana, i am outside us) try usb charching instead of wireless but cannot find the cause of these crashes.
Anyone an idea what could could this complete freeze?