1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cd0b1fd4-ea35-48c2-8042-7d9b39da840c.png?width=210&height=454)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1f0ba174-e21f-4b26-805c-7ddc6dfd0f54.png?width=210&height=454)
Press More settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1eb14c83-848b-4c57-a181-b4fee8f5d73f.png?width=210&height=454)
Press Encryption and credentials.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-28537b0a-92b1-4a67-ad12-8e0540e27bb9.png?width=210&height=454)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-be644da1-636a-4aaa-817e-89fc6f4262b3.png?width=210&height=454)
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/7140723-f-65076f4a-a4d9-40f5-82b7-a906db7fbcc9.png?width=210&height=454)
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-2ed5df9c-9b1d-4615-b291-64504487d763.png?width=210&height=454)
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-65076f4a-a4d9-40f5-82b7-a906db7fbcc9.png?width=210&height=454)