1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-4722e7ae-b85b-4c73-9deb-54d0b6ce906f.png?width=284&height=434)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-203f93c0-864c-4a79-b18e-c7bc18c11041.png?width=284&height=434)
Press the required price plan below "MOBILE PLANS".
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-7c0c4877-6334-43f1-a980-c8643fabcb23.png?width=284&height=434)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-ddb83bed-f5ff-466c-853c-4072887c368f.png?width=284&height=434)
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/7030125-f-240c52f6-ae6f-455f-b123-afc139a970ee.png?width=284&height=434)
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. You can get the PUK by calling customer services on 191 from a Vodafone mobile phone. If you're using a land line, you need to dial 03333 040 191. 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/7030125-f-5b91a758-913f-41b9-aca8-19d25de55f5e.png?width=284&height=434)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-240c52f6-ae6f-455f-b123-afc139a970ee.png?width=284&height=434)