As soon as I connected the adapter to a high-speed HDMI cable (I use this one) and my iPad Pro, my TV (an LG55B7V OLED TV) started mirroring the iPad Pro’s display and enabled Dolby Vision by default.
It allows you to mirror or cast content from your iPhone or iPad ... the adapter to the cable. Hook the cable into the back of the television. You should then be able to switch the TV's input ...
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