When connecting Live Gamer Ultra (GC553) to my 4K TV with PS4 PRO input source I can’t select 2160p (4K) resolution at PS4 PRO settings, only 1080p available, what to do?

Please make sure to use HDMI 2.0 cables only for connecting PS4 PRO and the 4K TV to the Live Gamer Ultra capture card and confirm whether does the 4K TV HDMI IN port support

HDMI 2.0 specification. In general we recommend to connect Live Gamer Ultra to HDMI-1 port on your 4K TV.

Note that some TVs will need to adjust further settings:

1. Press the Menu button your TV remote.

2. Scroll down and choose options.

3. Select HDMI Input Mode.

4. Set the input mode to HDMI 2.0