1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-03cf9f1d-c7f8-4838-9047-4838ccc7422a.png?width=308&height=410)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-4483ef13-b7ec-418d-ba62-0d63961c023e.png?width=308&height=410)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-2234a314-f1b9-4181-96a7-69f5df9df9c9.png?width=308&height=410)
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-5208ac30-979d-438b-8f37-3429162f5682.png?width=308&height=410)
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-b1eb1dae-64c4-4287-be14-38e582068da0.png?width=308&height=410)
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-5208ac30-979d-438b-8f37-3429162f5682.png?width=308&height=410)
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