Why does not my Sony 4K HDR support HDR?

I got my new TV (Sony KD-43XF7004) today. When I connect it to the XBOX ONE X is there that my TV no HDR and synonymous no 24 and 50 Hz mode supports. I bought the TV extra to watch 4K HDR 10, but it does not work.

Can I do something about it?

Can I send the TV back?

Can I hire someone who installs me the right Tv?

Here.

https://www.amazon.de/...E4RIKC0OC/

… Stands:

"Important to mention would still be that this TV Although HDR, but not the color depth dominated, the current consoles need and therefore no HDR with PS4 and Xbox One is possible"

(I can only pass it on)