Ericsson R310s User Manual
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Back
Assembly
You need to do the following to use your phone:
•
insert the SIM card
•
attach the battery to the phone
•
charge the battery
The SIM Card
When you register as a subscriber with a network operator,
you get a SIM (Subscriber Identity Module) card. The SIM
card contains a computer chip that keeps track of your
phone number, the services included in your subscription,
and your Phone Book information, among other things.
SIM cards come in two sizes. One is the size of a credit
card and the other is smaller. Your phone uses the smaller
card. Many credit card-sized SIM cards have a perforated
smaller card that you can take out easily. Before you can
use your phone, you must insert the SIM card as shown
below.
Hook for clip
Back cover lid
Security screws
Rubber plug (to
protect system
connector)