Help configuring a new LG remote

I bought a new Lg tv which doesn´t have CEC hdmi (amazing…). I´m trying to find the way to configure the remote in order i can use it with my rasp + osmc.
Does anybody know how could i do that?

Thanks a lot and sorry 4 my english

If you don’t have CEC, then you need a way of receiving the signals from the remote and translating those into desired actions.
I assume that it is an IR remote, so you could use a suitable detector wired to the GPIO pins of the RPi, or you could get an FLIRC device which plugs into a usb socket.
Have you considered the consequences though?
You would be receiving all the remote’s signals, and would have to work out whether there are keys which you don’t want to action because they will also affect the TV - you might conclude that it would be better to get a separate remote, and configure that.
Either way there are sections of the Kodi Wiki and the raspberrypi.org which deal with remotes.
HTH
Derek