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-663541c1-679f-4e7d-8afc-bc1cc46f4e03.png?width=204&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-368c6482-171a-4564-a97a-6b7a5d3311cc.png?width=204&height=418)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6c090f5c-00a2-4170-824c-34d4453a4324.png?width=204&height=418)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9adccce6-5515-402b-85e0-3d1ae494c3fc.png?width=204&height=418)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-923dc1d7-3f2b-441f-bb36-46c2dab036ca.png?width=204&height=418)
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-003c1cfe-c157-4a00-88ea-958960ed5aea.png?width=204&height=418)
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-13e9070a-d3c3-4baf-aac9-96065cb07f0d.png?width=204&height=418)
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-003c1cfe-c157-4a00-88ea-958960ed5aea.png?width=204&height=418)