Insert a SIM card eject tool or paper clip into the hole next to the headphone jack. Press down on the paper clip until the SIM card tray pops out. /Guide/Installing-iPhone-1st-Generation-SIM-Card/440/all#s1929 Grasp the SIM card tray and slide it out of the iPhone. /Guide/Installing-iPhone-1st-Generation-SIM-Card/440/all#s1930