![background image](http://html1.mh-extra.com/html/samsung/sm-j415fn/sm-j415fn_user-manual_4749229123.webp)
Settings
123
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 icon will appear on the status bar.
Data saver feature activated
To select apps to use data without restriction, tap
Allow app while Data saver on
and
select apps.
SIM card manager (dual SIM models)
Activate your SIM or USIM cards and customise the SIM card settings. Refer to
or USIM cards (dual SIM models)
for more information.
On the Settings screen, tap
Connections
→
SIM card manager
.
•
Calls
: Select a SIM or USIM card for voice calls.
•
Text messages
: Select a SIM or USIM card for messaging.
•
Mobile data
: Select a SIM or USIM card for data services.
•
Confirm SIM card for calls
: Set the device to display the SIM or USIM card selection pop-
up window when returning a call or calling from a message. The pop-up window will
appear only if the SIM or USIM card used for the previous call or message is different from
your preferred SIM or USIM card.
•
Dual SIM always on
/
Smart dual SIM
: Set the device to allow incoming calls from the
other SIM or USIM card during a call.
When this feature is enabled, you may incur additional charges for call forwarding
depending on the region or service provider.