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-b10866d9-6141-407e-af3f-f998fbb2edd9.png?width=208&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bd75b12b-ad81-401c-b8bf-6755d6da1ec4.png?width=208&height=454)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7f5f6459-96e6-4c70-adf5-0a02ec61b620.png?width=208&height=454)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d0283768-0d29-419f-a52a-fe6db345e5f0.png?width=208&height=454)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a040fb40-bb61-4850-8c50-266dd6e2a09e.png?width=208&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-ef50751f-b24f-4a29-9eaa-9e763a9dd5e4.png?width=208&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-f2c64eaf-df34-4cca-b812-5583a675c4a1.png?width=208&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-ef50751f-b24f-4a29-9eaa-9e763a9dd5e4.png?width=208&height=454)