Problems with Netflix on the TV?

I have an older TV and want to connect my smartphone via HDMI to USB C adapter there to see Netflix, the problem I have is that it works, you can see the Netflix menu of the phone on the TV, but once the movie starts I only hear the sound through the TV and the picture is black, with youtube I can easily see picture and sound, because it works perfectly synonymous, there's a solution?

Do not you have a laptop or PC to connect via HDMI? That is guaranteed and less hassle

Haha very funny. Exactly the same problem I have with Amazon Prime videos. In the meantime I have the assumption that these providers simply do not support certain cables in order to buy their own original products. The Amazon Fire TV Stick is currently on sale at Otto for 35 euro and new customers get 15 euro discount so you get it for 20 euro. Did you buy the cable because new

Well, if you already have your phone on and lying aside, it would be more practical if it works with it

This will bounce Netflix as well as SKY over the HDCP copy protection.

Yes this is new, but if everything else works blis Netflix not jann but not on the cable?

Even with the picture in picture function of the smartphone it is the same, and I do not always want to connect a laptop and startup…

That should not be due to the cable. For me it was exactly the opposite when I connected my new cable I could only see the picture. And then when I tried a miracast stick I could only hear the sound. But for all other programs that worked except for Amazon Prime. And I think if you get an original fire TV stick the problem is solved then you can also watch Netflix

And this can only be handled by a HDMI splitter?

This can't be avoided.

Is there a solution

Buy TV Stick, then there are not even these DRM problems.

I've also duplicated it on display, everything visible, but as soon as something is playing… Black. And Screen Mirroring is completely without cable.