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-ccca704f-32ad-4d86-ae14-c27c00020151.png?width=206&height=366)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5b29490c-1a94-4866-900a-8045a77241d0.png?width=206&height=366)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ebc1f62c-538a-4a96-9ade-e27dfac8d17a.png?width=206&height=366)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3005a358-850d-4018-9d49-94cdaeacfdf0.png?width=206&height=366)
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-c78015b0-927d-4f79-a76b-6f0a4eae0832.png?width=206&height=366)
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-2c0f9497-74b7-4ac4-818d-ce426706ff8f.png?width=206&height=366)
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-b2d1f59c-5d8c-4528-ae85-7219ef95f4ab.png?width=206&height=366)