Lg remote's return/exit button is not working

hi guys!

I have an older LG tv, and all the buttons are working fine on the remote, except the return/exit one, so basically i can’t go back to the main menu or go backwards in the menu structure anywhere.

Is there any way to see what kind of signal the button sends and configure that or modify it in some config file to be able to use it?

Thank you in advance!