How to remove sim card from iphone? First, ensure the device is powered off. Locate the SIM card tray on the side of your phone; it's usually on the right side for most models. Use a SIM card removal tool, or a paperclip, to gently push into the small pinhole until the tray pops out. Remove the SIM card, reinsert the tray, and power on your iPhone. This process is essential to know for managing your device.