![Samsung Galaxy S24 Ultra](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-8ec122c1-8e37-47a5-8912-8eec85d47135.png?width=150&height=320)
Samsung Galaxy S24 Ultra
Android 14
1. Find "SIM card security"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-26750584-7e4c-4088-b863-acdf7a4d16d3.png?width=212&height=462)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-5b1c0a9e-b9f1-4d88-9a2e-3345dbe4fdd0.png?width=212&height=462)
Press Security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-11d6bf8e-8f87-47b2-8b83-2e93416386a9.png?width=212&height=462)
Press More security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-83cd87b0-1bd1-4461-a42f-5955e1fe0375.png?width=212&height=462)
Press SIM card security.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-2a373126-0285-40fe-a3ed-628b9a60a009.png?width=212&height=462)
2. Change PIN
Press Change SIM card PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-aaff1846-2e2f-43da-96b7-faa8f1a4832d.png?width=212&height=462)
Key in your current PIN and press OK.
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/7080524-f-9b2d1e06-3dea-49ca-acc0-0e0c9b9a7d25.png?width=212&height=462)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-fc5d4bb7-e5f5-491d-a3a1-10c372cb4d1d.png?width=212&height=462)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-c34af66a-a38f-4199-96de-e5f36b02e840.png?width=212&height=462)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7080524-f-aaff1846-2e2f-43da-96b7-faa8f1a4832d.png?width=212&height=462)