1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-8fee165c-a62d-4794-97c2-a3bff3e69ce1.png?width=308&height=410)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-3f6f877a-266e-4c42-a4a2-3222dbadc0c7.png?width=308&height=410)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-61cc4290-a413-4254-a32b-d70293c3f7e1.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-4e55dcb2-dcb4-409d-bcc0-6d54d42e9f34.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-e1e372f4-e655-4fb1-b752-1b0297158d4a.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-4e55dcb2-dcb4-409d-bcc0-6d54d42e9f34.png?width=308&height=410)
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