LG TV RF Code for Back/Exit Button?

I have a Broadlink RM-Pro+ and an LG 49UJ6520. I have managed to learn almost all of the RF codes for the Magic remote, and then tested them working when I do a broadlink.send from within HASS.IO.

There is just 1 single button that I can’t get the RF code for – the BACK/EXIT button.

For some reason, either the e-Control or the RM-Pro+ can’t learn the RF code (orange button on RM-Pro+ does not turn off).

Has anyone managed to make the BACK/EXIT RF code worked successfully in HASS.IO?