I have the HDMI 4 command working on a file that worked on a few different Samsung TV models, currently running it on SmartIR. Should work fine with you. I’ve added all of them here;
{
"manufacturer": "Samsung",
"supportedModels": [
"Unknown"
],
"supportedController": "Broadlink",
"commandsEncoding": "Base64",
"commands": {
"back": "JgBGAJKVETkQOhA6EhMQFREUERQQFRA7DzsQOhAVEBUPFhAVDxYQFRE5EBUQOhAVERQROREUETkQFRE5ERQQOhA6EBUQOhAADQUAAA==",
"pause": "JgBGAJOVEDoQOhA6DxYPFhAVEBUQFRA6ETkROREUERQRFBEUEBUQFREUERQRORE5EBUQFRE5ETkRORE5ERUQFRA6DzsPFhAADQUAAA==",
"play": "JgBGAJOUETkRORA7EBUQFRAVEBUQFQ87DzsPOw8WEBUQFRAVEBUPOxA6EDoRFBEUEBURORAVEBURFBEUEDoRORE5ERUPOw8ADQUAAA==",
"forward": "JgBGAJSVDzsQOhA6EBURFA8WERQSExA6EjgQOhAVEBUQFREUEBUQFREUEBUROREUEhMQOhAVEDoRORE5ERQRORE5EhMSOBEADQUAAA==",
"stop": "JgBGAJSTEjgQOhE5EBYQFQ8VEBYQFRA6DzsPOxAVEBUPFg8WEBUQFRA6EDoRFBAVERQROg8VEDoRFBEUETkQOhE5EhMQOhAADQUAAA==",
"tools": "JgCMAJOUETgSNxI3EhMSExETEhMSEhI4EjcSNxITEhISExITERMSNxI4EhISNxITEhMSNxITEhISExI3EhMSNxI3EhMSNxIABfuTkxI4EjcSNxITEhISExITEhISNxI4EjcSExETEhMSExETEjcSNxITEjcSExITEjcSExETEhMSNxITETgSNxITEjcSAA0FAAAAAAAAAAAAAAAA",
"info": "JgCMAJOUETgSNxI3EhMSExETEhMSEhI4EjcSNxITEhISExITERMSNxI4EhISNxITEhMSNxITEhISExI3EhMSNxI3EhMSNxIABfuTkxI4EjcSNxITEhISExITEhISNxI4EjcSExETEhMSExETEjcSNxITEjcSExITEjcSExETEhMSNxITETgSNxITEjcSAA0FAAAAAAAAAAAAAAAA",
"hdmi": "JgBGAJGWETkRORI4ERQRFBAVERQRFBE5ETkROREUEBURFBEUERQQOxA6EBUPOw8WDxYQFRA6DxYQFRA6EBUPOxA6ETkRFBEADQUAAA==",
"up": "JgBGAJGWEDwNOw88DxQQFg8WDxYPFg86ETkROw8VEBYPFQ8XEBUOFhEVDhYPFhEVDzoROBEVDzsQOw86EDkROhAWDhYPPA4ADQUAAA==",
"down": "JgBEAJCWCEQNPQ09DRkMFw8YDRoKGA09DUEKPQwXDjsPGgoZCz8OIQYUDhgNHAk8DEEMFgscDTwNOw9BCkAJFg8YDTwOAA0FAAAAAA==",
"left": "JgBAAB4FBAgJDgsQDRATnwiKCEEKFwYgDEEJYg2yCBgNGQwfBiAHPQeLCB4LiwoaCRwJQgofB0AKPwgdChsKPwkADQUAAAAAAAAAAA==",
"right": "JgBGAI2YEDsMPw47DhgOFQ8YDhcNFw47DzsPPBEVDRcOFhAVEBcPFBE5EBYMGQ8WDjwOPQ0XDzsOFhE7DTwPOw4WDxYPOxAADQUAAA==",
"ok": "JgBGAJGXDzwMPQ49DhUQFg8WDxYQFBE6ETkPOhAWEBUPFg8WDxYQFQ8WEBYOOhAWDzsSOA8WDzsQOxA4ERUPOxAVDxYQOg8ADQUAAA==",
"return": "JgCMAJOUETgSNxI3EhMSExETEhMSEhI4ETgSNxITERMSExITERMSExISEhMSNxI3EhMSNxITEjcSNxI4ERMSExI3EhMROBIABfuTkxI3EjgSNxITERMSExISEhMSNxI3EjgRExITEhMRExITEhISExITETgSNxITETgSExE4EjcSNxITEhMROBETEjcSAA0FAAAAAAAAAAAAAAAA",
"exit": "JgCMAJOTEjcTNxI3EhMSEhITEhMRExI3EjcSOBISEhMSExETEhMSNxITEjcSNxITEjcSExETEhMSNxITEhISNxITEjcSOBEABfuTlBI3EjcSOBETEhMSEhITEhMROBI3EjcSExITERMSExISEjgRExI3EjcSExI3EhMSExISEjgRExITEjcSExE4EjcSAA0FAAAAAAAAAAAAAAAA",
"smart": "JgBGAJGWDzsPOxA6EBUQFRAVEBUQFRA6ETkQOhAVEBUQFREUEBURORAVERQRORA6ETkROREUERQRORA6ERQQFRITEBUROREADQUAAA==",
"menu": "JgBGAJKVEDoRORE5ERQQFREUERQRFBE5ETkQOhEUERQQFRAVERQRFBA6ERQRORA6ERQQFRAVETkQFRE5EBUQFRA6EDoROREADQUAAA==",
"back": "JgBGAJKWDzsQOhA6EBUPFhAVEBUQFQ87EDoSOBAVEBUPFhITEBUQFREUERQQOhA6EBUQOhAVEDoQOhA6ERQQFRE5EBUPOxEADQUAAA==",
"off": "JgBGAJOVEDoQOhA6DxYPFhAVEBUQFRA6ETkROREUERQRFBEUEBUQFREUERQRORE5EBUQFRE5ETkRORE5ERUQFRA6DzsPFhAADQUAAA==",
"on": "JgBGAJKVETkRORA6ERQRFBEUERQRFBE5ETkQOhAVEBUQFREUEBUQOhEUERQRORE5EBURFBA6EBUQOhE5EBUQFRA6EDoRFBEADQUAAA==",
"previousChannel": "JgBGAJKVEDoQOhA6ERQQFg8WDxYQFQ87EDoQOg8WDxcOFw8VDxcOFg8XDhYRFQ47EBUPFg8WDzsPPA87EDkRFBE5EjgQOhAADQUAAA==",
"nextChannel": "JgBGAJKVEDkROhE4EBUQFg4XDBkPFw86DzsQOg8WERQPFhAVEBUQFRA5ERUPFhA6DxYQFQ8WDzoRFQ87EDoRFBA5EToQOg8ADQUAAA==",
"volumeDown": "JgBGAJKVEDoSOBE5EBUQFREUERQRFBA6EDoROREUEBURFBEUEBUQOhE5ERQROREUEBURFBAVEBUQFRE5ERQQOhE5EDoQOhAADQUAAA==",
"volumeUp": "JgBGAJKVETkRORA6ERQRFBAVEBUQFRA7EDkROhAUERUQFRAUEBYQOhA6EDoPFhAVEBUQFQ8WEBUPFhAVEDoQOhA6EDoQOg8ADQUAAA==",
"mute": "JgBGAJGWEDoQOhA6EBUQFREUEBURFBA6ETkRORITERQRFBEUEBURORE5ETkROREUERQTEhEUEBYPFhAVEBUQOg87EDoQOg8ADQUAAA==",
"sources": {
"HDMI1": "JgBGAJKVETkRORE5ERQQFRAVERQQFRE5ETkROREUERQRFBEUERQRORAVERUPOxAVDzsQOhA6EBUQOhA6EBUQOhAVEBUPFhAADQUAAA==",
"HDMI2": "JgBGAJOUETkRORA6ERQQFRAVERQRFBA6ETkROhAVDxYQFQ8WEBUQFQ87EDoRORA6DzsQFRA6DzsPFhAVDxYQFRAVEDoQFRAADQUAAA==",
"HDMI3": "JgBGAJOUEDoRORE5ERQRFRAUERQRFBE5EDsQOhAVEBUPFg8WDxYPFhA6EBUPFg8WEBUROQ87EDoQFQ87EDoQOhA6EBUPFhAADQUAAA==",
"HDMI4": "JgBGAJOVETgRORE6DxYQFQ8WDxYPFhA6EDoQOhAVDxYQFQ8WDxYPOw8WEDoQFRAVDxYPOxA6EBUQOhAVEDoQOhA6EBUPFhAADQUAAA=="
}
}
}