![Samsung Galaxy Z Fold4](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-e1d216ee-5079-47d4-a89c-0c6b88d6e821.png?width=150&height=320)
Samsung Galaxy Z Fold4
Android 12.0
1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-3c58a191-ef36-44df-ac40-5e762f4e7176.png?width=378&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-33e80bb5-24d6-4987-b372-9ae8f266ee47.png?width=378&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-406da43a-d58b-49a1-857f-7f3a1e2a0856.png?width=378&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-12c0bce9-443c-4d58-8517-e7d3ad49b1d6.png?width=378&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-d6dab410-c35b-40b1-8440-3822ea433b82.png?width=378&height=456)
2. Change PIN
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)
Press Change SIM card PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)
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/7220224-f-0da23e73-27a0-4f5f-a9e8-ca43b20ccafc.png?width=378&height=456)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-0894a587-e7be-4a25-8a06-3ec116f4c2f5.png?width=378&height=456)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-a8d3a794-c52e-4cea-baea-1ca85139cd20.png?width=378&height=456)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)