Game tuner is not working because the Game Optimizing Service is Not availableWhyAnd its not even in galaxy store

J7 MAX WAS IN THE LIST ON FIRST NOTICE . BUT IT WERE REMOVED AND THEY ADDED SOME OLD DEVICES . WHY SAMSUNG REMOVED J7 MAX FROM LIST? WE WANT TO KNOW . ATLEAST PLEASE ADD IT ON THE LIST OR TELL US WHEN WILL WE GET OR WE WILL NOT GET OREO UPDATE . SO W...

WHEN WILL I GET J7 MAX AND J7 NXT MAJOR UPDATE (OREO)I SAW THE NOTICE BUT J7 NXT IS NOT IN THE LIST PLEASE TELL US THE DATE