My new Galaxy 7 is suddenly frozen, dark screen, unresponsive. No response to holding down the "start" button.
Does anything change when you plug in the phone?
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
Phone is fixed. Battery is not removable, but found that it can be re-booted can be done by pushing and holding power button and volume down button at same time. Then boots in Safe Mode. A mystery as to what went wrong, software glitch is assumed.