1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-385fd96c-c722-4d6f-aacd-1964b2e9c0d0.png?width=212&height=380)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-78eda78e-ff19-4850-894e-e3e8caf7127c.png?width=212&height=380)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0a4a2ae1-ad58-417f-8283-8a7abe2eebbb.png?width=212&height=380)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f44975b9-b998-4e44-aadb-e094af012fb8.png?width=212&height=380)
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-391c003d-6888-4bdf-95c3-5ac883fb4b51.png?width=212&height=380)
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-6b9ed71a-0c5e-4eea-87b3-99db3079900e.png?width=212&height=380)
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-391c003d-6888-4bdf-95c3-5ac883fb4b51.png?width=212&height=380)