Where is the memory card on the iPhone 4S ? – TechnologyReport
The memory card is located on the skinny right side of the iPhone, if its standing upright( It is located on the opposite side of the volume and ringer buttons) There should be a small dot a little bellow the center of the side, and when pushed in using a small needle (like a push-pin) it releases the sim/memory card to the iPhone. To put it back in just place the sim card on its holder, then push it back into place with the holder. If your iPhone freezes this might be a good idea to.