Sony Ericsson J110 User Manual page 41

Locks
Automatic keylock
Automatic keylock in standby means the keypad is locked
a short while after you last press a key.
To turn the automatic keylock on
1 From standby select
} Auto
keylock.
2 Select On.
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. Enter PUK provided by your operator.
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 turn
off your SIM card lock at any time.
If the message
appears when you edit your PIN, you entered the
PIN or PIN2 incorrectly.
To unblock your SIM card
1 When PIN blocked. Enter PUK provided by your
operator.
2 Enter a new four- to eight-digit PIN and select OK.
3 Re-enter the new PIN to confirm and select OK.
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Menu } Settings } Advanced
Wrong code. Attempts remaining:
is displayed, enter your PUK and select OK.