I'd call 1800SAMSUNG now and be sure to ask how to backup and restore your color settings.
99.99% of the time they will have you factory reset this TV. And if they send out a tech, they may change a board so it's important to get the backup and restore question answered.
I have a samsung smart tv: UE55H6470SSXZG. My problem is when i turn on the internet explorer app the smart remote mouse pointer stops working, all other remote functions continue to work fine. On other apps and smart functions the mouse pointer works just fine. I have had the tv for a year now and and this problem appeared only yesterday. Any ideas? Can i go about this without resetting the tv as i have set the colours just right and dont want to lose the settings