Is it possible to enable ARC on UE26EH4500W?

[Scooby2]

Total newbie here - but I have a Samsung HW-E350 sound bar with this TV and I am having to send the audio to its AUX input because the TV doesn't support ARC. Not a major issue but it means I lose the AnyNet CEC functionality that I'd otherwise get with HDMI ARC...

Firmware on this model is T-MST10PDEUC-1012.2 which I don't intend to upgrade yet.

In return, if I can help anyone out running stuff on this model that's about all I can do.

Thanks in advance.