1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3687118e-b47a-4195-a275-14726218082c.png?width=210&height=456)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-992d2397-a5be-4999-a9f0-81df950e1b3a.png?width=210&height=456)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-7ad5a9cc-c896-484b-96ce-d5dd0c717594.png?width=210&height=456)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-45ea8c4d-45b2-4faa-bdf0-9ecea1cdce88.png?width=210&height=456)
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-7ac07127-5821-423d-b697-24251330f92a.png?width=210&height=456)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-95d2ee3e-f873-4270-aeab-eea0f2e4f8eb.png?width=210&height=456)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-66adde8b-3fac-4fd2-af7c-2fb027a8f0df.png?width=210&height=456)
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-45ea8c4d-45b2-4faa-bdf0-9ecea1cdce88.png?width=210&height=456)