I got a system update on my S6 plus yesterda 10/4/2016. Ever since my phone has been almost completely unusable. Heats up when its not even being used. Calls come in but screen is black so I cant answer. Locks up or shuts off constantly when I try to use but screen turns on and off when no one is touching phone. Anyone else having issues? Is there a fix? Can we backout yesterdays system upgrade? I think it needs an exorcism!