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-2a8e5789-c19d-46c2-acfa-5f71996d1b15.png?width=204&height=452)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ab54c96e-8038-49b0-af51-d957aea0fa89.png?width=204&height=452)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e765efa2-596c-4b60-9f47-a20f2ce4ac9f.png?width=204&height=452)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1367eccf-1846-4ef7-b7ab-f82a722e617e.png?width=204&height=452)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3230888f-6036-44ac-9357-4b8ec34deb07.png?width=204&height=452)
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-b8ac5f8a-c50b-4370-9eea-17fa6effdce7.png?width=204&height=452)
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-f5c0daa1-33ee-4683-95b7-f602d7fd3160.png?width=204&height=452)
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-b8ac5f8a-c50b-4370-9eea-17fa6effdce7.png?width=204&height=452)