We apologize for the inconvenience caused. We would suggest you to visit nearby Samsung Service Center so service engineer will examine your device physically. Please find service center details in the link provided http://www.samsung.com/in/support/servicelocation/
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In Samsung everything super..recently I have seen other mobiles developers are making different applications..in camera side please make changes like rear camera need portrait mode...front cam already have it.but every one needs every things all ways..
