Question about Samsung One Connect

It is almost impossible to know which box is compatible with which TV. If the article number of this Samsung box does not correspond 1:1 with your defective box, then hands off and dispose of the TV :-(
A repair is without guarantee and almost as expensive as a new TV...

All plugging aspects look good (based on above picture) … my concern lies in the electronics (components), would a tech person be able to check? Thanks for all the much needed help on this

My guess is: no. Check the plugs and you will see very soon id compatible or not. I had to send mine back.