where is the sim card on iphone
The SIM card is in a cradle. You can pop the card out of the cradle. To replace the SIM card, put the card back in the cradle. The cradle and card are notched in a way that forces you to replace the card on the proper side. Then just slide the card back into the iPhone. The SIM tray is located on the right side of the iPhone 4. Like the rest of the iPhones, there is a small hole used to release the SIM tray. A paper clip is the tool of choice. Place the paper clip in the hole a press in firmly.