I have tried this over and over and over again. I can sign in to my Google Account on my Mac and my previous phone. On my Samsung, it tells me that my password and username do not match. I have double, triple checked every time that I am entering the right password and username. Once or twice it has said it couldn't communicate with Google Servers. It must be the phone. Is there anything in particular I can do to get around it? Or should I just go exchange it?