1. Find "Set up SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3cc69250-daf6-437a-9715-12720b63a844.png?width=208&height=430)
Press Security & privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3f1f51b8-f66d-41d8-a21b-a18232699f29.png?width=208&height=430)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-74d45061-8a97-4ad7-b236-8ac78a521bbe.png?width=208&height=430)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f779a419-25ba-47be-a4c4-e993c26eada9.png?width=208&height=430)
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/7140723-f-973c567e-a3a9-46a5-8a04-0dae9c61bf7b.png?width=208&height=430)
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-d093f1ba-543e-4dd0-b7ed-b2bb0507ded6.png?width=208&height=430)
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-973c567e-a3a9-46a5-8a04-0dae9c61bf7b.png?width=208&height=430)