Basics
6
•
You can see the touchscreen clearly even in strong outdoor sunlight by automatically
adjusting the contrast range based on the surrounding environment. Due to 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 touchscreen for
extended periods and turn off the touchscreen when not using the device.
–
You can set the touchscreen to turn off automatically when you are not using it.
Launch the
Settings
app, tap
Display
→
Screen timeout
, and then select the length
of time you want the device to wait before turning off the touchscreen.
–
To set the touchscreen to automatically adjust its brightness based on the
surrounding environment, launch the
Settings
app, tap
Display
, and then tap the
Adaptive brightness
switch to activate it.
•
Depending on the region or model, some devices are required to receive approval from
the Federal Communications Commission (FCC).
If your device is approved by the FCC, you can view the FCC ID of the device. To view the
FCC ID, launch the
Settings
app and tap
About phone
→
Status information
. If your
device does not have an FCC ID, it means that the device has not been authorized 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 mobile devices on airplanes or ships may be subject to federal and local
guidelines and restrictions. Check with the appropriate authorities and always follow
crew instructions regarding when and how you may use your device.
•
The bandwidths supported by the device may vary depending on the region or service
provider.
•
5G network availability may vary depending on the country, network provider, and user
environment.
•
Your device contains magnets. Keep a safe distance between your device and objects
that may be affected by magnets such as credit cards and implantable medical devices. If
you have an implantable medical device, consult your physician before use.
•
If your device supports the wireless power sharing function, this equipment should be
operated at least 20 cm away from your body.
•
If wireless charging is supported, the wireless charger must comply with FCC Radiation
exposure limits set forth for uncontrolled environments. This device and its antenna must
not be located or operated in conjunction with any other antenna or transmitter. This
equipment should be installed and operated at least 20 cm from the radiator and your
body.
Summary of Contents for SM-G991U1
Page 4: ...4 Basics...
Page 157: ...157 Appendix...
