power button not working

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Thanks for sharing 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

Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/