It hasn't been a year since I purchased J7 MAX GALAXY and its back button is not working. Sometime before it started behaving abruptly, applications closed by themselves coz even when back button was not pressed (touched). Now it is taking no response at all.
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#/
