On NVR4216 I had perfect 4K-UHD picture on my Sony KD55X8507CS via HDMI cable. The menu looked like as below.
Now I have NVR4216-4KS2 and when I chose resolution 3840x2160@30fps I get No Signal info on a TV screen (same Sony TV). The menu for NVR4216-4KS2 looks like as below
I consider...