I’m not sure what you mean by tx and rx - I have the machine wired exactly like this:
Looks like the 2 bumps on the black cable prevent it from being plugged in backwards - then on the SKR side, the cable is oriented so the single pin is towards the serial cables - according to that photo, that’s 5v to 5v.
Like I said in the initial post - I do think I plugged the SKR end of the black cable in backwards initially and powered it on - if that could have sent 5v through the wrong path into the TFT, maybe that damaged the TFT and that’s why it won’t connect?
I’ll look up USB to UART and see if I can figure that out.