Samsung Galaxy S7 Duos User Manual page 23

Basics
Removing the SIM or USIM card
1
Insert the ejection pin into the hole on the tray to loosen the tray.
2
Pull out the tray gently from the tray slot.
3
Remove the SIM or USIM card.
► Single SIM models:
► Dual SIM models:
4
Insert the tray back into the tray slot.
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