1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-aa8fa17a-fa1e-478c-9714-6c8b880b60d3.png?width=206&height=444)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e9d48bac-e04e-48dc-8e9e-57c8e01d5ed9.png?width=206&height=444)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f62bfe51-782e-43f4-84e8-1e8be5ee04b5.png?width=206&height=444)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-30d51ad6-67b5-4853-a815-03a40753077f.png?width=206&height=444)
2. Change PIN
Key in your current 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/7151223-f-441363ac-2df3-461a-8abc-aca42c80bd85.png?width=206&height=444)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-46f886b3-7ce8-4018-bc36-ab8bc4831ebe.png?width=206&height=444)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8fa323e6-d9ba-4149-98b5-ec02255f41ee.png?width=206&height=444)
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/7151223-f-30d51ad6-67b5-4853-a815-03a40753077f.png?width=206&height=444)