Photos: Cracking open the iPhone

Unlike most other mobile phones, the iPhone's case can't be opened in order to replace the battery or access the SIM card. The SIM card is held by a small holder in the top of the iPhone.

To remove the SIM card, insert a paper clip or other thin, round tool into the small hole on top of the iPhone. Then push it in to pop out the SIM card holder and card.

Photo by TechRepublic