Samsung SM-G850F ユーザーズマニュアル

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Basics
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On the Apps screen, tap Settings 
→ Power saving → Ultra power saving mode, and tap the 
Ultra power saving mode switch to activate it. Alternatively, open the quick setting panel 
and tap U. power saving to activate it.
To add an app to the Home screen, tap   and select an app.
To remove an app from the Home screen, tap   
→ Remove, select an app with  , and then 
tap OK.
To change the settings for ultra power saving mode, such as network connectivity or sound, 
tap   
→ Settings.
To deactivate ultra power saving mode, tap   
→ Disable ultra power saving mode.
The estimated maximum standby time shows the time remaining before the battery 
power runs out if the device is not used. Standby time may vary depending on your 
device settings and operating conditions.
Viewing help information
To view help information to learn how to use the device and apps, open the Apps screen and 
tap Settings 
→ Help.
To view help information for an app while you are using the app, tap   
→ Help.
Some apps may not include help information.