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HDMI® mode (4K models only)
On 4K (UHD) TVs, you can independently configure each HDMI input to match the capabilities of the connected
device. From the Home Screen Menu, navigate to Settings > TV inputs, and then select an enabled HDMI
input. Next, select HDMI mode and then select one of the following settings:
• Auto (recommended) – Let the TV determine the best setting. Use this option unless your HDMI® device
does not correctly communicate its HDMI® version information.
• Standard – Configure the input for compatibility with HDMI® version 2.0, which supports a maximum refresh
rate of 60 Hz at full UHD resolution. You must use this mode to view HDR content from the device connected
to this HDMI input. However, note that many older HDMI® devices do not work correctly when the TV's
HDMI input is set to this mode. After enabling this setting, you can optionally turn Auto low-latency mode
(ALLM) off or on.
• Compatibility – Configure the input for compatibility with HDMI® version 1.4, which supports a maximum
refresh rate of 30 Hz at full UHD resolution. Most HDMI® devices will work correctly with the TV in this mode.
Control by mobile apps
You can choose the level of control you want to allow your TV to accept from external devices, such as smart
phones, tablets and virtual assistants. Device connect settings enable other devices, including the Roku mobile
app, to control your TV over the local area network in your home.
To adjust the level of external control access:
1. From the Home Screen Menu, navigate to Settings > System > Advanced system settings > Control by
mobile apps.
2. Select Network access.
3. Select one of the following settings:
• Default – Devices can connect only through a private network address, and accept commands only from
other private network addresses on your home network. This setting is suitable for most cases, including use
of the Roku mobile app on your mobile phone.
• Permissive – Devices can connect under all conditions, but accept commands only from private network ad-
dresses or the same subnetwork within your home network. This setting might be required when attempting
to operate the TV from a third-party application; for example, one of the Internet of Things (IoT) applications,
such as ifttt.com.
• Disabled – Device connection is completely disabled. The TV does not accept external commands from any
source, including the Roku mobile app.
Voice
Select Voice to change settings related to using your voice to interact with the TV.
Microphone access
Your Roku TV does not have a built-in microphone. However streaming channel providers can use the micro-
phone on Roku Voice remotes (certain models) or on your mobile device when the Roku mobile app is running.
You can control whether streaming channels have permission to use the microphone.
Home theatre configuration
Your TV has several features that make it an ideal TV for a home theatre. But you might not notice them because
they remain in the background until you decide to use them.
Controlling audio output
You can control how your TV outputs sound by navigating to Settings > Audio > Audio output. Choose from
the following options:
• Auto – Let the TV decide the best way to output audio. It enables the S/PDIF optical port as well as either
HDMI® ARC/eARC or the built-in TV speakers.
• ARC (HDMI n) – Always output audio to the indicated HDMI® ARC or eARC port (depending on model).
Turn off the built-in TV speakers. The audio return channel (ARC) enables the TV to send Dolby Audio™ or
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