I had a message that AT&T had systems update. Am unsure if it was just for the Galaxy Note 4 but went ahead and updated. I am not happy with this update. I cannot change to color scheme so I stare at this not so great orange color. I have also noticed that a play store app game is not running smoothly since the update. Very frustrating. I tried to Uninstall game then I reinstalled and it still isn't working correctly. Thinking it might be the game I tried it on another device. It works wonderfully. The problems I am having must be dealing with my AT&T update. Please fix.