Samsung SGH-x507 Series User Manual page 11

Activating Your Phone
Installing the SIM Card
Important! The plug-in SIM card and its contacts can be easily damaged
by scratches or bending. Use caution when inserting or removing the card
and keep all SIM cards out of reach from children.
Make sure the gold contacts of the card face into the
phone, then slide the SIM card into the socket.
Removing the SIM Card
To remove the SIM card, slide it away from the cross-bar.
See the following illustration.
Section 1: Getting Started 7