I purchased a vivofit 4 less than a year ago. The other day I noted that the screen was black. Thinking it had been inadvertently turned off, I pressed the button and it came back on until today. It is black and does not respond.
I purchased a vivofit 4 less than a year ago. The other day I noted that the screen was black. Thinking it had been inadvertently turned off, I pressed the button and it came back on until today. It is black and does not respond.
