Samsung SM-G531H/DS User Manual page 12

Getting started
Using dual SIM or USIM cards
If you insert two SIM or USIM cards, you can have two phone numbers or service providers for
a single device.
Activating SIM or USIM cards
On the Home screen, tap Apps → Settings → SIM card manager. Select a SIM or USIM card,
and then tap the switch to activate it.
Changing the display name and icon of SIM or USIM cards
On the Home screen, tap Apps → Settings → SIM card manager. Select a SIM or USIM card
and tap Register name or Select icon. Set a display name and icon for each card.
Switching between cards
When two SIM or USIM cards are activated, card selection icons appear on the dashboard of
the notifications panel. Open the notifications panel and then select a card.
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