There are plenty of questions I want to ask all U guys who have this issue... 1) Did u update via OTA or manually flashed the FIRMWARE? 2) Was Ur device ROOTED before UPGRADE? 3) Did U perform FACTORY RESET after UPGRADE? 4) Did U Switch ON "Developer Option" in Settings?
We apologize for the inconvenience caused. We would suggest you to visit nearby Samsung Service Centre so service engineer will examine your device physically. Please find service centre details in the link provided http://www.samsung.com/in/support/servicelocation/
