Fix display issues with Continuum for phones
If you’re not seeing anything on the connected TV or monitor:
Check that all the cables you’re using are plugged in.
Make sure that your dock or adapter is connected to the correct HDMI port (there may be more than one).
Review the setup instructions to make sure that you didn’t miss a step.
If the picture doesn’t look right on-screen:
Go to the settings menu on your connected TV or monitor.