Samsung SM-J210F - Applications; Wallpaper; Themes

Settings
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Activating ultra data saving mode
Monitor and reduce your mobile data usage by preventing background apps from using the
mobile data connection. You can also use the data compression feature to compress Internet
data, such as images, videos, and webpages, accessed via the mobile network.
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This feature may not be available depending on the region or service provider.
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Some webpages or content may not be available when this feature is activated,
depending on the service provider or the mobile network conditions.
1
On the Settings screen, tap Smart Manager .
2
Swipe to the left, tap Ultra data saving , and then tap the switch to activate it.
You can change the data usage monitoring period. On the Settings screen, tap Data
usage
→ →
Change cycle .
Applications
Manage the device’s apps and change their settings.
On the Settings screen, tap
Applications .
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Application manager : View and manage the apps on your device.
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Default applications : Select a default settings for using apps.
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Application settings : Customise the settings for each app.
Wallpaper
Change the wallpaper settings for the Home screen and the locked screen.
On the Settings screen, tap
Wallpaper .
Themes
Apply various themes to the device to change the visual elements of the Home screen, locked
screen, and icons.
On the Settings screen, tap
Themes .