1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-b79d3af0-4c93-471e-9a87-1521f07e71b7.png?width=200&height=444)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-3b01aceb-1130-4ee0-b240-be5223bca65e.png?width=200&height=444)
Press Password & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-5b6b61a2-57b4-49ab-86b4-c02303406b43.png?width=200&height=444)
Press System security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-1996477e-478f-4872-a2a3-27636471cc56.png?width=200&height=444)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-14e622db-66ae-443c-a9d4-165b44559139.png?width=200&height=444)
2. Turn use of PIN on or off
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-a5a62dcb-aa76-4373-8302-882fd918a0be.png?width=200&height=444)
Press the indicator next to "Lock SIM Card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-000524a1-a61c-4173-a1a5-0fbe03bc91ce.png?width=200&height=444)
Key in your PIN and press the confirm icon.
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/7260822-f-283be5ed-0a29-4f10-9b0d-c850d6ddac42.png?width=200&height=444)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-000524a1-a61c-4173-a1a5-0fbe03bc91ce.png?width=200&height=444)
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