1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-b529fc7a-8977-490b-88bd-db36b15a1d88.png?width=210&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-0f4e9561-0afc-466c-9e7a-ff33922cf025.png?width=210&height=454)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-95796c27-04b5-4e04-b569-2d7fdfde59d5.png?width=210&height=454)
Press Advanced settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-91c5b956-ded4-4ac7-95f2-071363150123.png?width=210&height=454)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-29e87dc7-0827-434a-b54b-2f5f1b6d0623.png?width=210&height=454)
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/7170822-f-91be3ded-70fd-412d-bb64-870aa016c2b3.png?width=210&height=454)
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/7170822-f-fa3ce0cf-88ce-4121-9fdf-9f2555be7dca.png?width=210&height=454)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7170822-f-91be3ded-70fd-412d-bb64-870aa016c2b3.png?width=210&height=454)
How would you rate your experience?
Thank you for your evaluation!
![](/Content/images/design_assets/vf-fb-logo.png)