1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-42a4ab6f-a71e-48f5-ade1-54c7aeb1a829.png?width=336&height=448)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-5456b673-4199-468c-8631-7f01fffc48d2.png?width=336&height=448)
Press the info icon next to the required price plan below "MOBILE PLANS".
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-9db0a9f3-a55f-4c7b-ab87-ca09535b9235.png?width=336&height=448)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-8ff79933-4887-4337-b034-306b75aad7ce.png?width=336&height=448)
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/7070225-f-7ecf1d4a-8ff9-4cff-a6a5-170ec6eff40a.png?width=336&height=448)
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/7070225-f-444c04c4-f1f1-4aeb-8431-601e3e86e44c.png?width=336&height=448)
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/7070225-f-7ecf1d4a-8ff9-4cff-a6a5-170ec6eff40a.png?width=336&height=448)