1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-244c6685-c21e-45c4-8928-1ffb13ce8c8c.png?width=206&height=368)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d019cf85-7ffe-4552-8790-276e5971703a.png?width=206&height=368)
Press Lock screen & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d12b2ba8-6d58-4090-8452-5700df0bb5a0.png?width=206&height=368)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3a1259e1-e141-4be0-be47-182d8cc16f85.png?width=206&height=368)
2. Turn use of PIN on or off
Press Lock SIM card to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-24b6cfcf-ca05-4798-87b6-6d14033bf339.png?width=206&height=368)
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-d23ae980-2a0d-4e56-b893-bd1b401b7872.png?width=206&height=368)
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-24b6cfcf-ca05-4798-87b6-6d14033bf339.png?width=206&height=368)