Take out the card slot with the included tool Align your card in the tray Carefully reinsert the tray First, locate the SIM card tray on the left side of the handset. It will be just above the volume ...

Most people manage perfectly well with a single SIM card, but some people like to have separation between their work and home life (or maybe they run several different businesses), or they travel a ...

The subscriber identity module -- SIM -- contains the information used to connect to your wireless carrier's network from your iPhone 4. If you are planning to resell your company's iPhones, you ...