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.
This error generally means that the phone is having difficulty reading information from your SIM card, which can be caused by a build up of dirt on the SIM or SIM card tray. Remove the SIM card from the SIM tray. The SIM card is usually (with the exception of the iPhone) located behind or near the phoneâs battery. The iPhoneâs SIM is located in the SIM tray which is found on the side of the phone, and you will need to use the SIM eject tool or a paperclip to take the SIM out.