I literally unboxed my new Note II from AT&T bought from Amazon Wireless 4 hours, started installing apps, including Clean Fonts and Gothic Fonts, changed the default font on my system. I was happily playing with my new phone on Bluetooth headphones and during my software update - my phone looked like it was shutting down on purpose and it seemed dead with the LED up top lit in blue. I'm uninstalling those fonts, hoping to see if this is the culprit. I'll let you know. I dunno...very sad now as I am a new Droid user.