Device Guides
Samsung Galaxy S III
Buy now
Search in Samsung Galaxy S III
How to
Turning my mobile phone PIN on or off
If you want to protect your SIM against unauthorised use, you need to turn on your PIN protection. Once done, it needs to be keyed in when you turn on your mobile phone.
Please note: your PIN doesn't prevent others from accessing the contents of your mobile phone (such as pictures and messages). You can prevent this by turning on the phone lock code.
List view
1. Find "Set up SIM card lock"
Tap Apps.
Tap Settings.
Tap Security.
Tap Set up SIM card lock.
2. Turn use of PIN on or off
Tap Lock SIM card to turn use of PIN on or off.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting Customer Service.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
Key in your PIN (default is 0000) and tap OK.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting Customer Service.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
When the box next to the menu item is ticked (V), you mobile phone PIN is turned on.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting Customer Service.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
Please note:
If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.
3. Exit
Tap the Home key to return to standby mode.
Would you like information for your {device-name}?