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/7150824-f-0fdeb35d-6591-441d-919b-0d9e8f686c73.png?width=378&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-1debf088-522a-4ef8-a802-3c808ac7a527.png?width=378&height=456)
Press Security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-50f739d6-311c-43c0-8950-24995af598e9.png?width=378&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-2911f7f9-edda-4a80-8eb3-a0813effcace.png?width=378&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-9415ff3e-733a-455a-acf2-bbab18f760f6.png?width=378&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/7150824-f-87138561-d262-4b9c-b8de-5015de200279.png?width=378&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/7150824-f-7b69d110-eede-4b36-9bc3-8d39e9d1fd54.png?width=378&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/7150824-f-87138561-d262-4b9c-b8de-5015de200279.png?width=378&height=456)
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![](/Content/images/design_assets/vf-fb-logo.png)