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-a92392b6-425c-4d03-b2ba-1e63f0d95710.png?width=214&height=380)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4d9f6163-3f4d-4d0c-8458-0809fbbdeddc.png?width=214&height=380)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-450d0929-bc9f-45ef-9fe8-425c36f7bc7f.png?width=214&height=380)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3ac6075d-4ac3-42d9-aab7-0704706a2d9e.png?width=214&height=380)
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-87944466-7c31-4148-bf5d-b877564fbe5b.png?width=214&height=380)
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-14552eca-4861-4028-9a2c-7bccf24779c1.png?width=214&height=380)
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-87944466-7c31-4148-bf5d-b877564fbe5b.png?width=214&height=380)