1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7050225-f-ab26c213-9bd0-4fc1-a4cd-a6e724ffe518.png?width=310&height=442)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7050225-f-50851e1a-08ca-4f63-87ea-b7e8ee230487.png?width=310&height=442)
Press the info icon next to the required price plan below "MOBILE PLANS".
![](http://wmstatic.global.ssl.fastly.net/ml/7050225-f-56995d45-47af-4efc-b91f-e1d03bc8a3f1.png?width=310&height=442)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7050225-f-f7ddc69e-4359-4927-aab9-31b5f264be79.png?width=310&height=442)
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/7050225-f-aea8fe0b-9065-421f-ac19-802449d1902b.png?width=310&height=442)
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/7050225-f-fbf25767-1d50-43b3-89e1-106b75d09af4.png?width=310&height=442)
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/7050225-f-aea8fe0b-9065-421f-ac19-802449d1902b.png?width=310&height=442)