No app/no pairing code 
That’s the whole issue…their is no YouTube app anymore…when I called samsung support they said I have to get it from YouTube. My niece was over yesterday and she has an older model of the same tv…the pairing icon shows up instantly on her iPhone was she’s at home but at my house wit my tv her iPhone couldn’t detect my tv. We tried 3 apple products an s5 and a nexus android tablet…no luck with pairing 
I can’t find that stupid code anywhere. Where else can I look???