1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-e70b538f-505e-47ee-80a0-c8f9c7aa81a5.png?width=284&height=434)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-4cc14224-35a4-4387-b308-f61f9ccd050b.png?width=284&height=434)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-918295fb-d438-48ec-b8aa-f623c6872c86.png?width=284&height=434)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-f32d8411-80c6-469c-87d6-ea33cd64a5cc.png?width=284&height=434)
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/7030125-f-612c1bfa-eca1-4df3-b49f-fe6210b1d4bb.png?width=284&height=434)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-c432bf6b-1e6d-442f-9405-8bc6d0d60457.png?width=284&height=434)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7030125-f-cf578b3b-e529-42b3-af70-a840c9956a4f.png?width=284&height=434)
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/7030125-f-f32d8411-80c6-469c-87d6-ea33cd64a5cc.png?width=284&height=434)