Samsung ue40h6400 connect via ST app

i’ve tried using the new ST thing and unable to connect to samsung tv ue40h6400.
so installed custom smartapp and DH from here and this time it found the tv… but then is doing nothing. any ideas?

google says 2014, but not sure. any idea how to find out?
it’s connecting ok via the custom app and device handler and the device list shows a device network id when looking through api

:frowning: excuse for a new tv