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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.

Step 1 of 6

Find "settings"

Tap the phone icon.

Step 2 of 6

Find "settings"

Tap the dots in the bottom right corner of the display.

Step 3 of 6

Find "settings"

Tap settings.

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 the indicator next to "SIM security" 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 enter.

Step 6 of 6

Return to the home screen

Tap the Home key to return to the home screen.

Swipe right for the next step

Tap anywhere to dismiss

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