LG C3310 - Manual (Page 23)

PIN code (4 to 8 digits)
The PIN (Personal Identification Number) code protects your SIM
card against unauthorised use. The PIN code is usually supplied
with the SIM card. When the PIN code request is set to Enable,
your phone will request the PIN code every time the phone is
switched on. When the PIN code request is set to Disable, your
phone connects to the network directly without the PIN code.
PIN2 code (4 to 8 digits)
The PIN2 code, supplied with some SIM cards, is required to
access functions such as Advice of Call Charge and Fixed dial
number. These functions are only available if supported by your
SIM card. Check with your network for further information.
PUK code (4 to 8 digits)
The PUK (PIN Unblocking Key) code is required to change a
blocked PIN code. The PUK code may be supplied with the SIM
card. If not, contact your network operator for the code. If you lose
the code, also contact your network operator.
PUK2 code (4 to 8 digits)
The PUK2 code, supplied with some SIM cards, is required to
change a blocked PIN2 code. If you lose the code, also contact your
network operator.
Security code (4 to 8 digits)
The security code protects the unauthorised use of your phone. The
default security code is set to ‘0000’ and the security code is
required to delete all phone entries and to activate the Reset
settings menu. Also, the security code is required to enable or
disable the phone lock function to prevent unauthorised use of the
phone. The security code default setting can be modified from the
Security settings menu.
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C3310 User Guide
Getting started