1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b4fbc85f-d217-43e2-bedd-f25877a7bf0e.png?width=212&height=458)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4e1f5ba1-43d9-4fa8-9c1b-5d07aa0cd914.png?width=212&height=458)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-42f8d3bc-0412-4f12-928b-7002557bf8df.png?width=212&height=458)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-24cec110-f4a8-402b-ae4d-9fe0b5ca872f.png?width=212&height=458)
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-85f19d21-c8dc-43ba-a035-7d6e16486184.png?width=212&height=458)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2cb5a67d-7377-415b-845c-99d2d5030a5d.png?width=212&height=458)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c891991c-7eff-4626-9a13-92b3bc697446.png?width=212&height=458)
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-24cec110-f4a8-402b-ae4d-9fe0b5ca872f.png?width=212&height=458)