Samsung SM-T217AZKAATT - Manual (Page 137)

Settings 131
Set Up SIM Card Lock
To prevent another person from using your SIM card to make
unauthorized calls or from accessing information stored on
your SIM card, you can protect the information by using a
PIN code.
When enabled, your tablet asks for a PIN number each time
you use the tablet. Using this option you can also change
your SIM PIN number.
1. From the Settings screen, touch Security ➔ Set up
SIM card lock.
2. Touch Lock SIM card, enter your SIM PIN code, then
touch OK.
Note: You must activate Lock SIM card before you can
change your SIM PIN code.
To change your SIM PIN code:
1. Touch Change SIM PIN.
2. Enter your old SIM PIN code and touch OK.
3. Enter your new SIM PIN code and touch OK.
4. Re-type your new SIM PIN code and touch OK.
Forgotten SIM PIN Password
If you enter the wrong SIM PIN more than 3 times, you must
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 tablet
displays how many attempts you have remaining.
2. After the third incorrect attempt, SIM is now disabled,
Enter PUK code to continue. Contact carrier for
details displays and your SIM card is locked.
3. When you receive the new PUK code from your
AT&T Customer Service Representative, enter it in
the PUK code field.
4. Enter a new PIN code in the Enter a new PIN field and
touch OK.
5. Enter the new PIN code again in the Confirm your new
PIN field and touch OK.
Note: While your SIM PIN is locked, you can still make
Emergency calls, if necessary.