Yesterday I got a Nokia X7 and today when I was busy in playing a game, suddenly its screen went black. Then I thought that it has been locked automatically, therefore I tried pressing the button and then touching where it said unlock but it didn’t unlocked. It just started vibrating and then nothing. Then I tried to turned it off but it was not turning off and the only thing it was doing was vibrating when I was touching where it says unlock. I am just confused about what is happening with my this newly bought phone. Please, help me to overcome this serious issue.
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