1. Find "Privacy"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-284f0f54-3525-4fc7-b579-5d69e2579915.png?width=204&height=408)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-00b9f0d9-c191-47bc-a94b-ee4023ae1799.png?width=204&height=408)
Press Privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-41694154-927a-44de-aef3-faa2b01ba079.png?width=204&height=408)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fa795c28-52d1-4967-b203-d0a26260c00a.png?width=204&height=408)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b80afda8-c90d-47f2-8ecb-e11fd913ba43.png?width=204&height=408)
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-916ef72b-181e-4312-a9ac-a4f45028417a.png?width=204&height=408)
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-b80afda8-c90d-47f2-8ecb-e11fd913ba43.png?width=204&height=408)