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the battery may change according to the
network situation, work environment and
mode of use.
2.3 Connecting to Network
2.3.1 SIM card
Before using your mobile phone you must
insert a SIM card into the phone. The SIM card is
your key to access the digital GSM/GPRS network.
The information recorded on the metal area of the
SIM card is all the data related to establishing a
connection with the network, together with the names
and numbers in your phonebook and messages. Your
SIM card can be removed from your mobile phone and
be read in any other GSM/GPRS mobile phone to (a
new mobile phone will automatically read the SIM
card).
To prevent losing or damaging the data stored on
the card, you should avoid touching the metal area on
the card and keep the SIM card in a place far away
from electricity or magnets. Once the SIM card is
damaged, you will be unable to access the GSM/GPRS
network.