Base64 codes to use for the LG OLED CX TVs. Should work for others.

LGOLEDCX RF Codes Base64

{
    "version": 1,
    "key": "broadlink_remote_a043b0XXXXXX_codes",
    "data": {
        "tv": {
            "volume_up": "JgBIAAABJZQSExITEjkSExITEhMSExIUEjgSOBITEjgTOBI4EjkSOBITEjgTExITEhMSExITEhQRORITEjgSOBM4EjgSOBM4EgANBQ==",
            "volume_down": "JgBIAAABKJAWEBQRFTUVEBUQFREUERQRFTUVNhQRFTUVNRU2FTUVNhM3EzcVEBUQFREUERQRFRAVEBUQFTYUNhU1FDcUNhU1FQANBQ==",
            "mute": "JgBIAAABJ5EWDxURFDYVEBUQFRAVERQRFTUVNRURFDYVNRU2FDYWNBU1FREVEBU1FRAVERQRFBEVEBU1FTYVEBU1FTUVNhU1FQANBQ==",
            "input": "JgBIAAABJ5EWDxURFDYVEBUQFg8VERQRFDYVNRURFDYWNBU2FDYVNRU2FDYVEBU1FRAVERQRFRAVEBUQFTYUERU1FTUVNhQ2FQANBQ==",
            "home": "JgBQAAABJpMTEhMSFDUUERQRFBEUERQSEzYUNRQRFDYTNhQ1FDUUNhMSFBEUNRQ2EzYUNRQ1FBITNhM2FBEUERQRFBITEhM2FAAFJgABJ0kUAA0F",
            "hdmi_1": "JgBQAAABJpIUEhMSEzYTEhQRFBEUERQRFDYTNhQRFDUUNhM2EzYUNhMSEzYUNRQ1FBITEhM2FDUUNhMSFBEUERQ1FDUUEhMSEwAFJgABKEkTAA0F",
            "hdmi_2": "JgBQAAABJ5EUEhMSEzYUERQRFBEUERQSEzYTNhQRFDUUNhQ1FDUUNhMSExIUNRQ1FBITEhM2FDUUNhM2FBQRERQ1FDYTEhMSEwAFJwABJ0kUAA0F",
            "hdmi_3": "JgBQAAABJpMTEhMSFDUUERQRFBEUEhMSEzYUNRQRFDYTNhQ1FDUUNhM2FBEUERQ2ExITNhQ1FDYTEhM2FDUUERQ2ExITEhQRFAAFJgABJ0kUAA0F",
            "hdmi_4": "JgBQAAABJZMUERQRFDYTEhQRFBEUERQRFDUUNhMSFDUUNRQ2EzYUNRQSEzYTEhQ1FDUUEhM2FDUUNRQSEzYUERQRFDUUEhMSEwAFJgABKEkTAA0F",
            "power_on": "JgBQAAABJpMTEhMSFDUUERQRFBEUEhMSEzYUNRQRFDYTNhM2FDUUNhMSFBEUNRQRFBITEhM2FDUUNhM2ExITNhQ1FDYTEhMSFAAFJgABJ0kUAA0F",
            "power_off": "JgBQAAABJpMVEBQRFDYTEhMSExITEhQRFDUUNhMSEzYUNRQ2EzYUNRQ2ExITNhQRFBEUERQ2EzYTEhQ1FBEUNhM2FDUUERQRFAAFJgABKEgUAA0F",
            "input_av": "JgBQAAABJ5IVEBUQFTQVEBUREhMUERMSFDUVNBURFDUTNhU0FTUUNRUQFTQVERI3FDUVEBU1FBEUNRUQFTQVERQREjcUERQ1EwAFJwABJ0kVAA0F",
            "input_component_1": "JgBQAAABJ5IUERUQEzYVERQRFBEUERQRFDUVNRQRFDUTNhU0FTUUNRU0FTUUNRU0FTUUNRQRFDUVEBMSFREUERQRFBEUNRUQEwAFJwABKUcVAA0F",
            "service_menu": "JgBQAAABJZMUERQRFDYTEhMSExIUERMSFDUUNhMSEzYUNRQ2EzYUNRQ2EzYUNRQ2EzYUNRQ1FDYTEhQRFBEUERQRFBEUERQSEwAFJgABKEgUAA0F",
            "settings": "JgBQAAABJpMUERQRFDUUEhMSExITEhMSEzYUNRQSEzYTNhQ1FDYTNhQ1FDYTEhMSFBEUERQ1FBEUEhMSEzYUNRQ2EzYTEhQ1FAAFJgABKEgUAA0F",
            "sleep_timer_menu": "JgBQAAABJ5IUERMSEzYTEhMTFBESExITEzYTNxQQEzcUNRM2FDYSNxMSEzYTNxQ1ExIVEBMSExITNxQRExITEhM2FTQTNxQ1FQAFJQABJ0kVAA0F",
            "exit": "JgBQAAABJ5EVEBUQFTUVEBUQFRAVEBUQFTQVNRUQFTQVNBY0FTQVNBU1FTQVEBU0FjQVEBU0FRAVEBUQFTUVEBUQFTQVEBU1FQAFJAABKUcVAA0F",
            "back": "JgBQAAABJ5IVEBUQEzcUERITEhMTEhMSFDUTNxQREjcUNRU0FTUTNhUQEzcUERQ1FDUVEBMTEhMUNRQRFDUTEhMSEzcTNhM2EwAFJwABJ0kTAA0F",
            "play": "JgBQAAABJZQSExMSEzYTEhMSExITExITEjcTNhMSEzcSNxM2EzcSNxMSExITEhMSEzYTNxMSEzYTNxI3EzYTNhMTEhMSNxMSEwAFJwABJ0kTAA0F",
            "pause": "JgBQAAABJ5EUEhMSFDUVEBUQFRAVEBUQFTUUNRQRFTQUNhM2FDUUNhMSEzYUERU0FDYUNRUQFTQVNRMSEzYVEBUQFRAVNRMSFQAFJAABKUgUAA0F",
            "fast_forward": "JgBQAAABJZMVEBMTEjcTEhMSExITEhMSEzcSNxQREzYTNxQ1FTQVNBUREjcUNRM2FRESExMSFDUTNhURFBESExQ1FDUTNxQREgAFKAABJkoSAA0F",
            "rewind": "JgBQAAABJpMTEhMSEzcSExMSExITEhMSEzYTNxMSEzYTNhM3EzYTNhM3EzYTNhM3EhMSExMSEzYTEhMSExITExI3EzYTNhMTEgAFJwABJ0kTAA0F",
            "up": "JgBQAAABKpIVEBQRFDUVEBUQFRAVEBUQFTUUNRQRFTQWNBU0FTQWNBUQFRAVEBQRFBEUERQ2FRAUNRU0FTQUNhQ1FDUVERM2FQAFJAABKkcVAA0F",
            "down": "JgBQAAABJ5EUERURFDUUERUQFRAVEBUQFTUUNRQRFTQUNhQ1FTQUNhYzExIVEBUQFRAVEBU1FRAUERQ1FTQVNRM2FTQVEBU1EwAFJgABKUgTAA0F",
            "left": "JgBQAAABJ5EVEBUQFTUUERUQFRAVEBUQFTQVNRUQFTQVNBU1FDUVNBU1FDUVNBUQFREUERQRFBEUERUQFRAVNBU1FDUVNBU1FAAFJQABKUgUAA0F",
            "right": "JgBQAAABJ5EVEBURFDUUERUQFRAVEBUQFTUTNhUQFTQVNRM2FTQVNRQRFDUUNRUQFRAVEBURFBEUNRUQFRAVNBU1FDUVNBU1FAAFJQABKUgUAA0F",
            "ok": "JgBQAAABKJEVEBUQFTUVEBUQFRAVEBUQFTUUNRUQFTQVNRQ1FTQVNBURFBEUNRUQFRAVEBU0FREUNRU0FRAUNhQ1FTQUERU1FAAFJQABKUgTAA0F",
            "number_1": "JgBQAAABJ5IUERUQFTQVEBUQFRAVERQRFDUVNBUQFTUUNRU0FTUUNRU0FRAVEBUQFTUVEBUQFRAWDxU0FTUUNRUQFTQVNRU0FQAFJQABKEgVAA0F",
            "number_2": "JgBQAAABJ5IVEBUQFTQVEBYQFBEUERQRFDUVNBURFDUVNBU0FTUUNRUQFTQVERQRFDUVEBUQFRAWNBQRFDUVNBUQFTUUNRU0FQAFJQABKUcVAA0F",
            "number_3": "JgBQAAABKJEVEBUQFTUUERUQFRAVEBYPFTQVNRUQFTQVNBU1FTQVNBY0FDUVEBUQFTUUERQRFBEVEBUQFTQVNRQRFDUVNBU1FAAFJQABKUgUAA0F",
            "number_4": "JgBQAAABJ5IUERUQFTQVEBUQFRAVERQRFDUVNBUQFTUUNRU0FTUVNBUQFRAVNBURFTQUERUQFRAVNBU1FBEUNRUQFTQVNRQ1FQAFJQABKEgVAA0F",
            "number_5": "JgBQAAABJ5IVEBUQFjQUERQRFRAVEBUQFTQVNRQRFDUVNBU1FDUVNBU1FRAUNRUQFTQVERQRFBEUERQ1FRAVNBUQFTUVNBU0FQAFJQABKUcVAA0F",
            "number_6": "JgBQAAABJ5EVERQRFDUVEBUQFRAVEBUQFTUUNRUSEzQVNRQ1FTQVNRQRFDUVNBUQFTUVEBUQFRAVNBUQFRAVNRUQFTQVNBU1FQAFJQABKEgUAA0F",
            "number_7": "JgBQAAABJ5IUERUQFTQVEBUQFRAVERQRFDUVNBUQFTUUNRU0FTUUNRU0FTQVNRUQFTQVEBUQFRAVERQRFBEUNRUQFTQVNRQ1FQAFJQABKEgVAA0F",
            "number_8": "JgBQAAABJ48YEBUQFTQVEBURFBEUERQRFDUVNBURFDUVNBY0FDUUNRUQFg8VEBU1FDUVEBUQFRAVNBU1FDUVEBUQFTUUNRU0FQAFJQABKUcVAA0F",
            "number_9": "JgBQAAABJ5EWEBUQFDUVEBUQFRAVEBUQFjQVNBUQFTQVNRU0FTQVNRQ1FRAVEBYzFTUVEBUQFRAVEBU0FTUUERUQFTQVNRQ1FAAFJQABKUgUAA0F",
            "number_0": "JgBQAAABJ5EWDxURFDUVEBUQFRAVEBUQFTUUNRUQFTQVNRQ1FTQVNBURFBEUERUQFTQVEBUQFREUNRQ1FTQVNRQRFTQVNBU1FQAFJQABKEgUAA0F",
            "power_toggle": "JgBQAAABJpMTEhQRFDUUERQSExITEhMSEzYUNRQRFDYTNhQ1FDYTNhQRFBEUERQ2ExITEhMSFBEUNRQ2EzYUERU0FDYTNhQ1FAAFJgABJ0kUAA0F",
            "input_tv": "JgBQAAABJpMUERMTEjYUERQRFBEUEhQREzYUNRQRFDYTNhQ1FDYTNhQRFDUUNhMSEzYUERQ1FDYTNhQRFBEUNhMSEzYUERQRFAAFJgABKEgUAA0F",
            "netflix": "JgBQAAABJZMTEhMTEjcTEhQRFBETEhMSEzcSNxQRFDUTNhU1EzYTNxITEjcUNRMSEzcSExI3ExITNhMTExIUNRQREzYVEBU1EgAFKAABJkoUAA0F",
            "prime_video": "JgBQAAABJ5IUERMSEzYVEBURFBESExMSEzYTNhMTFDUUNRM2FTUUNRQRExIVNRM2EzYTEhM3EhMSNxM2FRATEhMTEjcUERM2FQAFJQABJ0kTAA0F",
            "picture_mode": "JgBQAAABH5ATEhUQEzQSEhQRFBATEhMREzMTNRITFDMSNhI1EzUSNRM1EhIUMxM1EhMUEBQzEhMUERMzExITEhMzEzUSExMzFAAFBwABIkYSAA0F",
            "info": "JgBQAAABIY4UEBUREjUTEBUQFBAUERMSEzMUNBMQFTMUNBQzFTMUNBQQFTMTEBUzFBEUMxQRFDMUMxUQFDQTEBUzExITNBQRFAAFBgABIUcTAA0F",
            "channel_up": "JgBIAAABJ5EVERQRFDYVEBURFBEUERQRFTUVNhQRFDYVNRU2FDYVNRURFBEUERQRFRAVERQRFBEUNhU1FTYUNhU1FTYUNhU1FQANBQ==",
            "channel_down": "JgBIAAABJpITExITEjgSFBEUEhMTEhQRFDYUNxQRFDYUNhQ3FDYUNhQ3FBEUERQRFBITEhQRFBEUERQ2FDcUNhQ2FDcUNhQ2FAANBQ==",
            "dot_one": "JgBIAAABJ5IUERQRFTUVERQRFBEUERUQFTUVNhQRFTUVNRU2FDYVNhQRFDYVEBURFDYVNRU1FREUNhQRFTUVNhQRFBEVEBU1FQANBQ==",
            "dot_two": "JgBIAAABJ5IUERQRFTUVERQRFBEUERURFDYUNhQRFTUVNhQ2FTUVNhQ2FRAVERQRFDYUNhU1FREUERQ2FTYUNhQRFBEVERQ2FAANBQ==",
            "dot_three": "JgBIAAABKJEVEBUQFTUVERQRFBEVEBUQFTYUNhUQFTUVNhQ2FTUVNhQ2FTUVERQRFBEVNRU2FBEUERQRFTUVNhQ2FRAVERQ2FAANBQ==",
            "dot_four": "JgBIAAABJ5EVERQRFDYVERQRFBEUERQRFTUVNhQRFDYVNRU2FDYVNRU2FBEVEBUQFREUNhQ2FRAVERQ2FDYVNRU2FBEUERU1FQANBQ==",
            "guide": "JgBIAAABJpIVERQRFDYUERURFBEUERQRFDYUNxQRFDYUNhU2FDYUNhU2FDYUERQ3FBEUNhQRFDcUERMSFDYUERU2FBEUNhMTFAANBQ=="
        }
    }
}

Your welcome. I am glad they helped. I don't remember where I got them. I just remember saying to myself, "I should save these as I'll never find them again."

any one has channel up and down ?

edit:
here i get the codes

  "channel_up": "JgBIAAABJZQRFBEUETkSExEUERQRFBIUEDkSNxEVEjcRORE4ETgSOBEUEhMRFBEVERQRFBEUERQRORI3EjgSNxI4ETgSNxI4EwANBQ==",
  "channel_down": "JgBYAAABI5USFBITETgSExIUERQRFBITETgSOBEUETkROBE4EjgROBE5ERQRFBEUERURFBITERQSExE5EjcSOBE4ETgSOBI3EgAFMQABJ0oSAAyUAAEmSxIADQU=", 

any one has channel up and down ?

edit: here i get the codes

You beat me to it. Was just going to post. I'm not sure why I didn't record those before.

While I was at it, I added the dots. See the code above.