It doesn't work with laptops. Laptops hdmi port are only for outputAs per customer care executive DeX mode only works with hdmi monitors and not with laptops
We apologize for the inconvenience caused. Regarding your concern we would suggest you to visit nearby Samsung service center in order to get your device physically inspected by the Service Engineer. Please find service center 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#/
