1. Find "Privacy"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e697fa4c-eee7-438c-a341-ef9c9b4d000b.png?width=208&height=450)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5f430027-7a44-46da-9bc7-0bf50d5c3036.png?width=208&height=450)
Press Privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fcfe01b3-0ebd-4553-b699-158feedca4c1.png?width=208&height=450)
2. Turn use of PIN on or off
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0970cf86-8615-43d5-a60d-a41fd39433c4.png?width=208&height=450)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b152a2c0-e51c-4294-a665-85958ea70744.png?width=208&height=450)
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-feb0fbf8-8fe7-4769-a78b-a8dadacbc111.png?width=208&height=450)
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-b152a2c0-e51c-4294-a665-85958ea70744.png?width=208&height=450)