I charged my fitbit blaze put it back in th band it was responding to my touch just fine. Then maybe 10 minutes later it shut off (showed the fitbit logo and buzzed) then went then went back to the clock face and that is when I couldn't do anything. The buttons won't work and then I couldn't use the touch screen. Later the buttons did start to work but the screen wouldn't turn off. I finally got it to restart just now and still nothing. It still tracked everything I can see that on the app but the touch screen still won't work. Is there anything I can do or do I just need to have it replaced?