Samsung SGH E310 User Manual page 18

Getting Started
3. Slide the SIM card into the SIM card socket, as
shown, so that the card locks into position.
Make sure that the metal contacts of the card
face into the phone.
Note: When you need to remove the SIM card,
slide it upward, as shown, and take it out of
the socket.
4. Replace the battery so that the tabs on the end
align with the slots at the bottom of the phone.
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