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Windows Central Question
Hello Everyone.. i checked my mobile today it was fine but later ..i have check the side screen turn blue colour ..and a minute its been growing and now its completely dark ,,,just turned black but sound works..everything is working screen is not broken..and i have just put mobile on desk.. after that why.. its happen .. i have researched it on google..but nothng finds...please help me out.. i have attached picture.. !! Help me out 
