Restart Your Switch and TVĪfter plugging everything in correctly, turn off your Switch and TV. If this doesn’t work, move on to the troubleshooting steps below. Connect the HDMI cable to the TV’s HDMI input.Connect one end of the HDMI cable to the dock.Plug the AC adapter into the wall outlet.Connect the Switch AC adapter to the dock.Check the AC power cable for any damage.It usually doesn’t matter how you plug everything in, but if you have trouble try this specific order to connect everything: