Hi , ive seen various Youtube posts that you need one ui 3.1 on both devices to use shared keyboard from tab s7 but ive just done it from my tab s7 plus ( 3.1 ) to my Note 10 Plus running 3.0 .
Had to link them via bluetooth and turn on input device on Tab s7 bluetooth connection on Note 10 plus .
You then hit Cmd & Lang to switch between devices , you'll see the cursor switch from one to the other .
Its a bit jerky on Note 10 plus .
You also get a brief pop up on Tab s7 telling you which device is under keyboard control .
