Its an old LG, but given the recent light on the lengths they’ll go to spy on us, I figured this guy was better off without any ability to even connect wirelessly. Don’t know if the Ethernet still works but I plan on keeping my TVs as dumb as possible, HDMI only.
If you’re wondering how to open lg TVs you just have to remove all the screws then start pulling open at the bottom and open the clips going up. With the TV face down on a soft surface just keep pulling on the back case from the bottom, it’ll take some effort to pop open. The top edge folds open more like a hidge than clips.
HEC was dead on arrival and had zero support from device manufacturers. The only reason that HDMI with ethernet cables were ever relevant was ARC support. With HDMI 2.1 the extra pair on old cables is used by eARC, no clue if it’s even possible to still use HEC in theory. I’ve never seen any device with HEC support.