Samsung J1 SM-J120F - Manual (Page 29)

Basics
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You can use the following functions on the notification panel.
► Single SIM models:
Launch Settings.
Tap a notification and perform
various actions.
Clear all notifications.
Rearrange quick setting buttons.
Maximise brightness for better
visibility in bright conditions.
Quick setting buttons
Adjust the brightness.
► Dual SIM models:
Launch Settings.
Tap a notification and perform
various actions.
Clear all notifications.
Select a SIM or USIM card.
Rearrange quick setting buttons.
Maximise brightness for better
visibility in bright conditions.
Quick setting buttons
Adjust the brightness.