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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.

Step 1 of 6

Find "Set up SIM card lock"

Slide two fingers down the display starting from the top edge of your mobile phone.

Tap Settings.

Step 2 of 6

Find "Set up SIM card lock"

Tap Security.

Step 3 of 6

Find "Set up SIM card lock"

Tap Set up SIM card lock.

Step 4 of 6

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 SingTel.

Tap Lock SIM card to turn the function on or off.

Step 5 of 6

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 SingTel.

Key in your PIN (default is 1234) and tap OK.

Step 6 of 6

Return to the home screen

Tap the home icon to return to the home screen.

Swipe right for the next step

Tap anywhere to dismiss

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