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-13aa9a5f-a943-4dd2-bbc7-adf99288ee19.png?width=216&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a4002c45-bfb2-4cde-b051-0cf303f233af.png?width=216&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fd92f46b-eea0-4f25-a81f-043b90428a7c.png?width=216&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-da5315df-ef04-46ec-ba52-e21aeee3b878.png?width=216&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0f464191-bdac-4362-a0c8-6528fea62513.png?width=216&height=456)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-90728fab-586d-4d70-aad8-f7ebcaacf6cf.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-d7aba53d-523a-454e-b770-ce279bfba501.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-90728fab-586d-4d70-aad8-f7ebcaacf6cf.png?width=216&height=456)