1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6fe2cf48-310a-4ec5-8d0d-74b26cc3838e.png?width=208&height=444)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-037acb36-fa9d-4d34-943e-378823f43229.png?width=208&height=444)
Press More settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8fcd5f19-47c2-445f-8f2e-d9b2d827f4bd.png?width=208&height=444)
Press Encryption and credentials.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40a0d9b5-4908-4684-a8b4-d7d36afe5caf.png?width=208&height=444)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9f8b6b86-949a-45e7-88db-531b3cdcb388.png?width=208&height=444)
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-ea61e0f1-d8ca-4d18-85da-990b9d1051a0.png?width=208&height=444)
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-b5babe37-32b2-4262-bcf0-e764d5cc77d8.png?width=208&height=444)
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-ea61e0f1-d8ca-4d18-85da-990b9d1051a0.png?width=208&height=444)