if ur phone is in warranty then change the motherboard quickly because it has got damaged now so change it otherwise they will charge u high cost after warranty expiration..
We apologize for the inconvenience caused. Regarding your concern we would suggest you to visit nearby Samsung Service Centre in order to get your device physically inspected by the Service Engineer. Please find service centre details in the link provided -http://www.samsung.com/in/support/servicelocation
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