LG G5200 Guide De L'utilisateur page 157

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Access Codes
Getting Started
You can use the access codes described in this section to avoid
unauthorized use of your phone. The access codes (except PUK and
PUK2 codes) can be changed by using [Menu 4-5-4].
PIN code (4 to 8 digits)
The PIN (Personal Identification Number) code protects your SIM
card against unauthorized use. The PIN code is usually supplied with
the SIM card. When PIN code is set Enable, your phone will request
the PIN code every time it is switched on. On the contrary, when PIN
code is set Disable, your phone connects to the network directly
without the request PIN code.
PIN2 code (4 to 8 digits)
The PIN2 code, supplied with some SIM cards, is required to access
some functions such as Advice of call charge, Fixed Dial number.
These functions are only available if supported by your SIM card.
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 local service provider for the code. If you lose the code,
also contact your service provider.
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
service provider.
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