It is the youngest of the five United States service academies, having graduated its first class in 1959. Graduates of the Academy's four-year program receive a Bachelor of Science degree, and most are commissioned as second lieutenants in the Regular United States Air Force.
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. Make sure the paper clip fits in the hole.
Check Tray. If your iPhone is not recognizing its SIM card, the first thing to check is the tray that holds the card. If the SIM card tray is not securely pushed all the way in to your phone, it cannot be read by the device. On the iPhone 4, the SIM tray is located on the right side of the device.