if it's under six months of purchase of mobile then it's covered and will be replaced for free. I did it for my wife's S9+. One side earphone had stopped working. They replaced it, no questions asked.
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 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#/
