User's Manual

42 Security for your phone and subscription
Security for your phone and
subscription
The 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. To unblock it you need to
enter your “PUK” (Personal Unblocking Key). Your
PIN and PUK are supplied by your service provider.
To unblock your SIM card
1. PIN blocked appears in the display.
2. Enter your PUK and press
YES.
3. Enter a new four- to eight-digit PIN and press
YES.
4. Re-enter the new PIN to confirm and press
YES.
To change your PIN
1. Scroll to Settings,
YES, Locks, YES, Card lock, YES,
Change PIN,
YES.
2. Enter your old (current) PIN and press
YES.
3. Enter your new PIN and press
YES.
4. Re-enter the new PIN to confirm and press
YES.
Note: If the message “Codes do not match” appears,
you entered the new PIN incorrectly. If the message
“Wrong PIN” appears, followed by “Old PIN:”, you
entered your old PIN incorrectly.
To change your PIN 2
1. Scroll to Settings,
YES, Locks, YES, Card lock, YES,
Change PIN2,
YES.
2. Proceed as described in “To change your PIN”.
To turn the SIM card lock on or off
1. Scroll to Settings,
YES, Locks, YES, Card lock, YES,
Protection,
YES.
2. Select On or Off, and press
YES.
3. Enter your PIN and press
YES.
T600.book Page 42 Friday, August 23, 2002 4:43 PM