1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2c5f94f1-0ca7-4fe0-a7d8-82b6dc20c44b.png?width=206&height=444)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-909a352a-806c-4ed9-a4d1-86bbdce69186.png?width=206&height=444)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bcb0b886-7730-4aeb-9b47-46fb5610c24d.png?width=206&height=444)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1068056c-bced-4a15-9d82-5be7e8b1c88b.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-9f7a25c6-b8c2-4ba8-9767-b7c771b20ab4.png?width=206&height=444)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-586e1c83-ad5d-49f2-ae20-4c102ee2f128.png?width=206&height=444)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c2799114-7378-4ec5-ab04-aa13d0cc5b45.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-1068056c-bced-4a15-9d82-5be7e8b1c88b.png?width=206&height=444)