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-32cc8eec-6445-4e8f-8b47-bd4d3dda1913.png?width=216&height=386)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-eaee2628-3f3b-4a73-8d68-4905dc65756f.png?width=216&height=386)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-7be653a9-a1e1-4a81-89e3-fc7c9a704bea.png?width=216&height=386)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-965ec08d-cf15-4116-bc55-a4deee54c9e3.png?width=216&height=386)
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-3972c0d9-adcc-4012-95bf-a4a341ba3c78.png?width=216&height=386)
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-a60718e1-f8b8-4fad-9009-6515b135bda4.png?width=216&height=386)
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-3972c0d9-adcc-4012-95bf-a4a341ba3c78.png?width=216&height=386)
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