1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-4f6961dd-23ee-4a25-8b0f-4017a4fa1c8a.png?width=296&height=396)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-d774b4a8-8682-4406-b44c-03b398e3bba9.png?width=296&height=396)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-b5432d04-fdaa-4324-a5c2-a6facca9ce4f.png?width=296&height=396)
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-560209fc-368c-4505-8d59-9dafc3311099.png?width=296&height=396)
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-a3ff20e1-c5c9-464c-9a86-5f46405372d5.png?width=296&height=396)
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-560209fc-368c-4505-8d59-9dafc3311099.png?width=296&height=396)
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