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-88d20c03-b386-4471-bab9-2c03b0421dc7.png?width=206&height=368)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-41909e14-7af2-4791-a72f-605cd1534fc1.png?width=206&height=368)
Press Lock screen & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-38670436-1ff4-467e-95a3-360be80589f9.png?width=206&height=368)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-bab1b9d5-4aba-4d0d-af1d-316896cf9d40.png?width=206&height=368)
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-c7efbd2e-8e0f-464c-9a7f-865d61568353.png?width=206&height=368)
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-5713e81f-455d-4507-8197-19768472e267.png?width=206&height=368)
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-ea6cbf6a-0b08-4bd6-8fc1-6732b906e9ee.png?width=206&height=368)
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