1. Find "Set up SIM card lock"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-01d5fbfe-5fa8-4abd-97e8-493b2f31eade.png?width=198&height=410)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40a752dd-9cf6-4172-9c0b-127812b71f66.png?width=198&height=410)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-777765b3-3d88-4fa2-b90a-62b7edcbdecd.png?width=198&height=410)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4f3d9337-f391-4456-a8a9-4ffe6621d0be.png?width=198&height=410)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-91eb04f1-f41a-4944-bf9c-3ac4d2a178f9.png?width=198&height=410)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b2e5ea97-fc2f-49c3-a684-6bf000bb9a1a.png?width=198&height=410)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b2e5ea97-fc2f-49c3-a684-6bf000bb9a1a.png?width=198&height=410)
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-10877e08-570a-4865-8166-072e6156c0d8.png?width=198&height=410)
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-b2e5ea97-fc2f-49c3-a684-6bf000bb9a1a.png?width=198&height=410)