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2.5 Unlock SIM card
To avoid illegal use, the SIM card is enciphered with PIN (personal
identification number) as a protection. When this function is ON
and you have already set a PIN code, you need to type in PIN
code every time the handset is switched on in order to unlock SIM
card and use the handset.
You can switch off the SIM PIN code. Yet in this situation, the
SIM card can't prevent illegal use.
Input PIN code, press cancel key to erase typing error and
press OK to end typing. For example, if the PIN code is set as
1234, then type "1234" then press OK.
The SIM card will be locked if you type in wrong code for three
times continuously. The handset will inform you to type in PUK
code.
