Samsung SM-S911B User Manual page 168

Usage notices
You can see the touch screen clearly even in strong outdoor sunlight by
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automatically adjusting the contrast range based on the surrounding environment.
Because of the nature of the product, displaying fixed graphics for extended periods
may result in afterimages (screen burn-in) or ghosting.
‒ It is recommended not to use fixed graphics on part or all of the touch screen for
extended periods and turn off the touch screen when not using the device.
‒ You can set the touch screen to turn off automatically when you are not using it.
Open Settings, tap Display → Screen timeout, and then select the length of time
you want the device to wait before turning off the touch screen.
‒ To set the touch screen to automatically adjust its brightness based on the
surrounding environment, open Settings, tap Display, and then tap the Adaptive
brightness switch to turn it on.
Depending on the region or model, some devices are required to receive approval
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from the Federal Communications Commission (FCC).
If your device is approved by the FCC, you can check out the FCC ID of the device. To
access the FCC ID, open Settings and tap About phone → Status information. If your
device does not have an FCC ID, it means that the device has not been authorised for
sale in the U.S. or its territories and may only be brought to the U.S. for the owner's
personal use.
The use of ultra-wideband (UWB) transmitters is prohibited when aboard an
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aeroplane or ship. When you turn on flight mode, the UWB feature will be turned off.
(Galaxy S23 Ultra, Galaxy S23+)
The use of ultra-wideband (UWB) transmitters is prohibited when turned on within a
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nominated distance of a specified Australian radio astronomy site. (Check the Radio
communications Class Licence 2015 published by the Australian Communications
and Media Authority for further details). (Galaxy S23 Ultra, Galaxy S23+)
Depending on the region, you can check out the regulatory information on the
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device. To access the information, open Settings and tap About phone → Regulatory
information.
The bandwidths supported by the device may vary depending on the region or
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carrier.
5G network availability may vary depending on the country, network provider, and
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user environment.
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