BenQ S660C - Manual (Page 20)

6 Preparing Your Phone For Use
8
The PIN (Personal Identification Number) is a password provided by
a network operator with a SIM card. You need this password in order
to use the SIM card.
4. When the PIN code entered has been accepted, the phone will
automatically search for the designated network. This search
process may take a few seconds.
6. After you open the phone book on the SIM card, any data you
browse, store, or delete will be from the SIM card's phone book.
If you open the phone book in the phone's memory, any data
that you view, store, or delete will be from the phone's phone
book.
7. The standby screen will be displayed, as well as network signal
If you enter the PIN incorrectly 3 times in a row, the SIM card will lock
down and no longer be usable. If this happens, you must enter the
PUK (Personal Unblocking Key) for that SIM card in order to unlock
it. Please contact your network operator to obtain a PUK.
/ To cancel PIN password authentication, go to the menu Settings →
Security → PIN Code → PIN1 Code. Please see page 150.
/ If at some later point, you wish to switch phone books, go to the
following menu Phone Book → Activate.
5. The phone will then ask you whether you wish
to activate the phone book stored in the
phone's memory or on your SIM card. Press
to highlight the desired phone book and
then press to open the phone book you
have selected.