Sony Ericsson K550im - Manual (Page 68)

68 More features
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 appears, 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
} Security } Locks } SIM protection
} 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
} Security } Locks } SIM protection
} } Protection
and select On or Off .
2
Enter your PIN
} OK
.
Phone lock
Protect your phone against
unauthorized use if it is stolen and the
SIM card is replaced. You can change
the phone lock code (0000) to any
four- to eight-digit personal code.
Automatic phone lock
If the phone lock is set to automatic,
you do not need to enter your phone
lock code until a different SIM card is
inserted in the phone.
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.
It is important that you remember your
new code. If you forget it, you have to take
your phone to your local Sony Ericsson
retailer.
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