Samsung GT-I9100M User Manual page 34

• When you have set an unlock pattern, you have to
use the pattern each time you turn on the phone. If
you do not want the phone to require a pattern,
Applications → Settings → Location and
security → Change screen lock, confirm the
saved pattern and select None.
• If you forget the unlock pattern, take your phone to
a Samsung Service Centre to be unlocked.
• Samsung is not responsible for the loss of
passwords or private information or other damages
caused by illegal software.
To set an unlock PIN code:
1. In Idle mode, select Applications → Settings →
Location and security → Set up screen lock → PIN.
2. Enter a new PIN (numeric) and select Continue.
3. Enter the PIN again and select OK.
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To set an unlock password:
1. In Idle mode, select Applications → Settings →
Location and security → Set up screen lock →
Password.
2. Enter a new password (alphanumeric) and select
Continue.
3. Enter the password again and select OK.
To lock your SIM card:
You can lock your phone by activating the PIN supplied with
your SIM card.
1. In Idle mode, select Applications → Settings →
Location and security → Set up SIM card lock →
Lock SIM card.
2. Enter your PIN and select OK.
Once the PIN lock is enabled, you must enter the PIN each
time you turn on the phone.