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-1782f7ec-5f5a-4f39-b44c-529c0e04a669.png?width=210&height=376)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-55ee562f-b73f-4924-97f8-3f2005e1af6a.png?width=210&height=376)
Press Lock screen & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c7560952-288d-4655-a304-74ebb0c2cd81.png?width=210&height=376)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e961d058-5488-416a-8559-bd24dbf59961.png?width=210&height=376)
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-20a2b313-36d4-4e96-b9ef-6723680f8f04.png?width=210&height=376)
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-44a22c1d-2a6f-4ed3-bb5d-ceb7785c233f.png?width=210&height=376)
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-b6e07c24-3252-4036-908c-5d2a24abba72.png?width=210&height=376)