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/7100822-f-fc3dc543-0316-49e7-b86e-f7f97b045ad4.png?width=202&height=448)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-0dccfc04-68ec-4e46-9903-cce51a1f2204.png?width=202&height=448)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-02061b09-a99d-487e-a6ab-4e7d35c55eae.png?width=202&height=448)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-d93cc3d2-318e-48fa-8e98-ff6b6d69107a.png?width=202&height=448)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-1cff22cc-a7d0-424e-99d4-d228eedce494.png?width=202&height=448)
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/7100822-f-b406d6c1-5648-4768-adda-c94e449f1aec.png?width=202&height=448)
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/7100822-f-c8f51ca6-854d-438b-8aca-fd4af89c8560.png?width=202&height=448)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-b406d6c1-5648-4768-adda-c94e449f1aec.png?width=202&height=448)
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![](/Content/images/design_assets/vf-fb-logo.png)