1. Find "SIM card security"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-f85d29a6-90a8-483b-bbe0-08a8b7d99925.png?width=214&height=462)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-7d4fb1ac-4851-47a6-938d-d8026b722bb8.png?width=214&height=462)
Press Security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-fa20b3ce-076f-4598-99da-54b43d315f5c.png?width=214&height=462)
Press More security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-b2885c30-191d-42cd-8698-17290e73b77e.png?width=214&height=462)
Press SIM card security.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-c7b5457d-84f6-4534-8100-43f864865840.png?width=214&height=462)
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/7150824-f-f8d11b3f-ef9b-47a5-b2c3-0f3461ddb899.png?width=214&height=462)
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/7150824-f-99bb9657-e858-4a06-ab8f-72789c18b6bc.png?width=214&height=462)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7150824-f-f8d11b3f-ef9b-47a5-b2c3-0f3461ddb899.png?width=214&height=462)
How would you rate your experience?
Thank you for your evaluation!
![](/Content/images/design_assets/vf-fb-logo.png)