1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cb77762e-fe16-40a2-8291-1e4764721890.png?width=198&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-29a4ea3f-9947-4333-8a95-13a3cc7e0d5e.png?width=198&height=440)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7569efa3-098a-4f5f-989e-74301940ee27.png?width=198&height=440)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-27ec4a97-c96f-4a2c-9b70-d75b2f69b137.png?width=198&height=440)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-76307840-5c95-4e61-909f-8dc6681f6018.png?width=198&height=440)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8155b5af-a7a8-4fff-898f-3d9463d7475e.png?width=198&height=440)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8155b5af-a7a8-4fff-898f-3d9463d7475e.png?width=198&height=440)
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-777442fc-8228-4894-a661-76f36846566a.png?width=198&height=440)
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-8155b5af-a7a8-4fff-898f-3d9463d7475e.png?width=198&height=440)