Sony Ericsson Z520a Cell Phone User Manual


 
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More features
SIM card lock
The SIM card lock protects your subscription, but
not your phone itself, from unauthorized 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 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.
Phone lock
The phone lock protects your phone against
unauthorized use if it is stolen and the SIM card
is exchanged. 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 should forget it, you have to take your phone to
your local Sony Ericsson retailer.