UE55MU7000t one connect box connection problem

[Abram102]

Hi so I bought a second hand Samsung tv UE55MU7000txxu and doesn’t see one connect box...

my remote allows me to on and off tv ...that’s all;(

please help 

need at least OCB model number compatible with my tv model 

thanks...

[PaulyWauly36 · Accepted solution]

make sure the connections are firmly in,if still probs buy new cable, ebay etc