1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-ee04e864-0407-4c29-aaa0-0f1cd37c04c8.png?width=282&height=376)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-64ba6b26-a508-4872-8edc-854dec901370.png?width=282&height=376)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-cc0f5788-abea-4ecd-a502-d773973b9289.png?width=282&height=376)
2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-e74e8817-d0ea-445d-bd3a-1bf61c0137bc.png?width=282&height=376)
Key in your PIN and press Done.
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/7291123-f-00f4599b-1b51-4a6f-811d-b6b546f8c34b.png?width=282&height=376)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-e74e8817-d0ea-445d-bd3a-1bf61c0137bc.png?width=282&height=376)
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