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1.2 Connecting network
1.2.1
SIM card
Your network provider will provide you with a insertion SIM card(user identification card). SIM card is the
key for you to enter the GSM network. Before using the mobile phone, you must insert valid SIM card
into the mobile phone.
All information records related with network connection are in the SIM card, also including name, telephone
number and short message in the card. SIM card can also be take off from your mobile phone and insert into
any GSM mobile phone for use (new mobile phone automatically reads SIM card.).
To prevent from loss and damage on the information in the card, please avoid touching on metal plane area
and put the SIM at the site far from current and magnetism.
Warn：
Before taking out SIM card, the mobile phone must be turned off. It is
absolutely prohibited to insert into or take out SIM card when connecting to
external power, or SIM card may be damaged.
1.2.2
SIM card insertion
Generally SIM card is put into a card, before installation, it must be taken out carefully.
Turn off the mobile phone and remove the battery and other external power.
Insert SIM card into the bottom of the connection card and ensure the metal plane is downward and
corner position is same to clamping slot corner;
Push SIM card , lock SIM card and install the battery;
If you need take out SIM card, please first turn off mobile phone and take out the battery, then remove
SIM card.
1.2.3
Unlocking for SIM card
To prevent from illegal use, SIM card adopts PIN (personal identification number) code to encrypt for
protection. When selecting to use this function (refer to 4.4 chapter), when you turn on the mobile phone each
time, you must input PIN code, so you can unlock SIM card , then you can send or answer calls. A user can
also remove SIM card protection.(refer to 4.4 chapter)
Hold down Pwr to turn on the mobile phone;；
Input PIN code, press left function key to confirm. For example: if PIN is set as 1234, then input as
follows:
1 2 3 4 confirm
If you input wrongly for continuous three times, then your SIM card will be locked, the mobile phone will
query PUK code. Please refer to 4.4 chapter.
Especially note：
Your network operator will set a standard PIN number (from 4 bits to 8 bits)
for your SIM card, you should change it to your private password as rapidly as
possible.
1.2.4
Connect to network
After SIM card is decrypted successfully, the mobile phone will search your registered network or local
N6305's usermanual
第 12 页
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