It works for new Samsung Smart TV and older models
-Require Infrared blaster ( IR ) smartphones or tablets

Xiaomi Mi 4 , 5 , 6 , 7, 8 , 9 , 10 , A1 , A2 , A3 , Max ,
Redmi Note 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 Pro , 4X , Pro
Huawei P20 , P30 Pro , P40 , Mate 20 Pro
Honor 10 , 20 Pro , V30 Pro
Samsung Galaxy S4 , S5 , S6 , Note 3, 4 ,
HTC One ( m7 , m8 , m9 , max ) , Desire 200 , Butterfly S
LG G2 , G3 , G4 , G5 , V10 , V20 , G Flex2 , Optimus G Pro , L90
Gionee Marathon M5
Oppo Mirror 5
Lenovo Vibe X3

or other model with (IR) Infrared transmitter,port,sensor...

-Disclaimer
This application is not the official Samsung TV Remote