1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e0948856-ff8f-4c3a-895a-6acad742554d.png?width=216&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4676d3ae-b6f2-46e5-8a3a-7cb3426bd6a0.png?width=216&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-08c51c24-1f71-479e-8642-a25ba2bf2123.png?width=216&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6574df65-c3e9-4a28-8ae3-867650e0464c.png?width=216&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3fd84591-128e-467e-90a7-7203a3e9bb59.png?width=216&height=456)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7f964ed5-818c-4464-83e4-cc0ede8e9a60.png?width=216&height=456)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7f964ed5-818c-4464-83e4-cc0ede8e9a60.png?width=216&height=456)
Key in your PIN and press 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 services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Vodafone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d808d559-d215-4fb1-b420-3964c0356024.png?width=216&height=456)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7f964ed5-818c-4464-83e4-cc0ede8e9a60.png?width=216&height=456)