My phone is not a week old and it goes to black when I receive or make a call. Its annoying as I have to press the pwr button to get it up so I can access the dial-pad or the spkr. Can anyone please help if you had and resolved this issue.....I spoke to Google play and they suggest....a factory reset sometimes clears up these issues. I certainly not happy at the prospect of having to redo my contacts and apps etc.....please help, thanks.