1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e9b5d0bd-240d-4996-94d6-f6cc7414492c.png?width=206&height=412)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f86410f2-38a4-46e8-b910-1dfaa8bd70bd.png?width=206&height=412)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-68e69765-2347-4114-9468-4f1ad2e06774.png?width=206&height=412)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a475c7bb-73f1-4114-b24f-2d3a0fd709a0.png?width=206&height=412)
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-513a2c49-f72c-4175-94f3-56cd18d00a9e.png?width=206&height=412)
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-fa749a16-11fe-4ece-a44c-4430b4b27666.png?width=206&height=412)
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-513a2c49-f72c-4175-94f3-56cd18d00a9e.png?width=206&height=412)