1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7010524-f-94a18f85-f413-40c6-96e8-ee388a0d87cf.png?width=194&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7010524-f-2aee4cc7-19cf-4f7a-93ff-7f7dfd9229c2.png?width=194&height=434)
Press Security & biometrics.
![](http://wmstatic.global.ssl.fastly.net/ml/7010524-f-c41308a7-678f-4479-a16c-1f43aee5c9da.png?width=194&height=434)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7010524-f-8484b1c1-1f73-4ec1-acba-1e124a06e419.png?width=194&height=434)
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/7010524-f-d2609d2f-a27e-4cfc-8fde-df87965dbff9.png?width=194&height=434)
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/7010524-f-7833e406-6a30-404f-8599-d59841a92785.png?width=194&height=434)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7010524-f-d2609d2f-a27e-4cfc-8fde-df87965dbff9.png?width=194&height=434)
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