1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-42090bbf-290e-4ef4-a8f2-e8affe71adeb.png?width=296&height=396)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-19591117-7214-4b94-b7d4-05e1d3cef6c1.png?width=296&height=396)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-8d371cdb-9b8d-4d4a-a846-efd850b2a900.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-6a0f33b4-ea0c-444f-93f8-3d01ece62b22.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-762a26a4-40d1-4554-b18c-32fb81c02ed6.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-6a0f33b4-ea0c-444f-93f8-3d01ece62b22.png?width=296&height=396)
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