1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-dbf0a820-481e-464c-ba96-e53558f9cd34.png?width=212&height=380)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-dd9af3d4-b5aa-49ce-bbc7-b90f19df59e8.png?width=212&height=380)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-16f9aef5-696e-483d-89ad-8480c36ad154.png?width=212&height=380)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-b6e73c44-b062-4e57-ad0d-93f498daf8bb.png?width=212&height=380)
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-91d3c35c-56fe-4269-9a30-1446ddda7cfe.png?width=212&height=380)
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-14129172-3ff2-4afb-a589-19101ced55f3.png?width=212&height=380)
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-91d3c35c-56fe-4269-9a30-1446ddda7cfe.png?width=212&height=380)
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