Sony Ericsson K700c - Manual (Page 81)

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More features
Calculator
The phone has a calculator, which can add,
subtract, divide and multiply.
To use the calculator
} Organizer }Calculator .
• Press or to select ÷ x - + % =
• Press to delete the figure.
• Press to enter a decimal point.
SIM card lock
The SIM card lock protects your subscription, but
not your phone itself, from unauthorized use. If you
change SIM cards, the phone still works with the
new SIM card.
Most SIM cards are locked at the time of purchase.
If the SIM card lock is on, you have to enter a PIN
(Personal Identity Number) every time you turn on
your phone.
If you enter your PIN incorrectly three times in
a row, the SIM card is blocked. This is indicated by
the message
PIN blocked . To unblock it you need to
enter your PUK (Personal Unblocking Key). Your
PIN and PUK are supplied by your network
operator.
To unblock your SIM card
1 When PIN blocked is displayed, enter your
PUK } OK .
2 Enter a new four- to eight-digit PIN } OK .
3 Re-enter the new PIN to confirm } OK .
To edit your PIN
} Settings } the General tab } Locks } SIM lock
} Change PIN .
To turn the SIM card lock on or off
1 } Settings } the General tab } Locks } SIM lock
} Protection and select On or Off .
2 Enter your PIN } OK .
Please note that the accuracy of the calculator is
limited.
If the message Codes do not match appears, you
entered the new PIN incorrectly. If the message
Wrong PIN appears, followed by Old PIN: , you entered
your old PIN incorrectly.