Samsung SM-C105AZWAATT - Manual (Page 161)

Forgotten SIM PIN password
If you enter the wrong SIM PIN more than 3 times, you will
need to contact your AT&T Customer Service Representative
to get the PUK code for your device.
1. Each time you enter a wrong SIM PIN number the
phone will display how many attempts you have
remaining.
2. After the third incorrect attempt, the SIM is now
disabled, Enter PUK code to continue. Contact carrier for
details displays and your SIM card is locked.
3. Enter the new PUK code that you received from your
AT&T Customer Service Representative in the PUK code
field.
4. Enter a new PIN code in the Enter a new PIN field and
tap OK.
5. Enter the new PIN code again in the Confirm your new
PIN field and tap OK.
Note: While your SIM PIN is locked, you will still be able to
make Emergency calls if necessary.
Make passwords visible
When enabled, password characters display briefly as you
touch them while entering passwords.
1. From the Home screen, tap ➔ Settings ➔
More ➔ Security.
2. Tap Make passwords visible to create a check mark
and enable or disable the display of password
characters.
Changing Your Settings 154