Sony Ericsson K300a User Manual
Page 64
62
This is the internet version of the user’s guide. © Print only for private use.
Most SIM cards are locked at the time of purchase. If the
SIM card lock is on, you have to enter a PIN (Personal Iden-
tity 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
}
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
}
General
tab
}
Locks
}
SIM lock
}
Protection
and select
On
or
Off
.
2
Enter your PIN
}
OK
.
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.
UG.book Page 62 Tuesday, March 22, 2005 2:16 PM