1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-051867c9-3b73-4b31-b413-69c26f078966.png?width=216&height=384)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6f0f4a46-6ebe-4c2a-9d3e-60cd5bcb4dd8.png?width=216&height=384)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-16afcae6-6fa4-429e-9d8d-dd85a7928291.png?width=216&height=384)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f64a3adc-fa4d-496b-87a5-18329998f239.png?width=216&height=384)
2. Turn use of PIN on or off
Press Lock SIM card to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b45d2414-d83f-4607-b174-cb2a6a03bad1.png?width=216&height=384)
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/7140723-f-d84b2b2e-6407-4693-b6e5-c2ee7b2b7834.png?width=216&height=384)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3cea7d49-211f-48b6-877a-733cad22cdf1.png?width=216&height=384)