This is a hot issue for Samsung Smart TV customers. Samsung has deleted the You Tube app from its Smart TVs. There is a new possibility (Mirroring) for newer TVs, but that does not address the difficulty that has been caused. It also introduces the concern that Samsung might withdraw other support such as Mirror casting in a little while.
The issue also affects screen casting from Android devices. Following the Nougat s/w update Samsung 'phones no longer talk to Samsung TVs, regardless of age.
I see lots of negative comments about Samsung, which may be correct but are not helpful.
In the hope that it will help others, here is my own solution. We are running a Samsung Note 5, and a Samsung S7 and trying to cast to a Samsung TV series UE50. Casting used to work, as did You Tube, but both now fail.
Our solution was to download AllShare from the Play Store to our 'phones. Immediately the TV showed up again and we can cast photos, videos and music from our 'phones to the TV without further issue. Great result!
You Tube casting is a litle trickier, but still possible. To do it, you need to ask AllShare for Online sharing. Then open the You Tube video you want to cast, and select Share (the circular arrow). Then you get a list of ways to share, including AllShare. Press AllShare and you get a choice to Queue or view immediately. Press either of these and it wil start to stream (or if queued it will wait for the current content to finish). For some reason it will not cast You Tube videos directly, but the above workaround is fine for us. Quality is excellent. We were so happy we bought the app (2.99 Euros), but it's free if you don't mind the ads.
...Samsung have messed up the customer communication, but technically it is not their fault. The DNLA (Digital Living Network Alliance) solution that they use still works just fine, which is how AllShare can connect to the TV. The issue is that YouTube no longer supports many of the formats used in DNLA and is migrating to HTML5 instead, which unfortunately the older TVs seem unable to deal with. Why Samsung stopped QuickConnect as well is beyond my ken, and will cost them consumer loyalty. Come on Samsung - either approve AllShare as one of your apps (or something similar) or at least let your customers know that it answers their needs.
If this has helped, please indicate by 'liking' it. Maybe that will give Samsung cause for thought!
