How do you take the SIM card out of a Samsung Galaxy s6?
Removing SIM Card
Locate the SIM Card tray. It is located below the Power button on the side of the standard S6 model.
Use the eject tool included with your Galaxy S6 or a paper clip to gently push the small button on the SIM Card tray.
The tray will eject and allow you to remove the SIM Card.