Sim card lock, Keypad lock – Sony Ericsson D750i User Manual
Page 78
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78
More features
SIM card lock
The SIM card lock protects your subscription,
but not your phone itself, from unauthorized use.
If you change SIM cards, your 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. You can edit your PIN and select a new
four- to eight-digit PIN.
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
1 }
Settings
}
the
General
tab
}
Locks
}
SIM lock
}
Change PIN
.
2
Enter your PIN
}
OK
.
3
Enter a new four- to eight-digit PIN
}
OK
.
4
Re-enter the new PIN to confirm
}
OK
.
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
.
Keypad lock
You can lock the keypad to avoid dialling a number
by accident.
If the message
Codes do not match
appears
when you edit your PIN, you entered the new PIN
incorrectly. If the message
Wrong PIN
appears,
followed by
Old PIN:
, you entered your
old PIN incorrectly.
Calls to the international emergency number 112 can
still be made, even when the keypad is locked.