Data Saver; Mobile Data Only Apps - Samsung SM-N770F User Manual

Settings
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Touch the NFC antenna area on the back of your device to the NFC card reader.
To set the default payment app, open the Settings screen and tap Connections → NFC and
contactless payments → Contactless payments → Payment, and then select an app.
The payment services list may not include all available payment apps.

Data saver

Reduce your data usage by preventing some apps running in the background from sending
or receiving data.
On the Settings screen, tap Connections → Data usage → Data saver and tap the switch to
activate it.
When the data saver feature is activated, the
To select apps to use data without restriction, tap Allowed to use data while Data
saver is on and select apps.

Mobile data only apps

Select apps to always use the mobile data even when your device is connected to a Wi-Fi
network.
For example, you can set the device to use only mobile data for apps that you want to keep
secure or streaming apps that can be disconnected. Even if you do not deactivate the Wi-Fi
feature, the apps will launch using the mobile data.
On the Settings screen, tap Connections → Data usage → Mobile data only apps, tap the
switch to activate it, and then tap the switches next to the apps you want.
You may incur additional charges when using this feature.
icon will appear on the status bar.
Data saver feature activated
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