![Apple iPhone 15](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a654d9cc-596c-4fac-b8d7-edf9fdffcc9e.png?width=150&height=320)
Apple iPhone 15
iOS 17
1. Find "Change PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d816297e-2fb8-4301-898b-43f581324aa6.png?width=212&height=458)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e665e259-4b8f-4b07-aecc-def4f0544030.png?width=212&height=458)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3baf46f7-d35a-4b1c-a600-ac1cb51beeae.png?width=212&height=458)
Press Change PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-afde3585-ca35-4e5e-bea6-12872dfd7dcb.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-751e5537-f5ab-43ae-8a81-b7c99dd54d28.png?width=212&height=458)
Key in a new four-digit PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-874869e4-8eb8-4c05-b8a4-9556ffd4d6d6.png?width=212&height=458)
Key in the new PIN again and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1dc07cdd-3722-4c29-b3ea-83ef392ad41b.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-afde3585-ca35-4e5e-bea6-12872dfd7dcb.png?width=212&height=458)