![Samsung Galaxy A41](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-013296dd-db0f-4966-99e1-e2e31cf9a1eb.png?width=150&height=320)
Samsung Galaxy A41
Android 10.0
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-4bffd78c-bfa5-48e7-ae81-d552da8b5a8a.png?width=204&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-8c1660ec-ec6f-4dfe-b4ac-4862760abe3f.png?width=204&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-a69966ef-d578-4050-8941-6f380d55baa6.png?width=204&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-3d722f4b-51a6-404d-b433-bd579439938d.png?width=204&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-dcdace13-2381-4cd7-bb3d-28e9951bd1f1.png?width=204&height=456)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-a518b0be-99a1-4cbd-9159-e524e4dbfefa.png?width=204&height=456)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7220224-f-a518b0be-99a1-4cbd-9159-e524e4dbfefa.png?width=204&height=456)
Key in your 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-da211bf6-8a40-4fb8-b917-d30ffe3fea51.png?width=204&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-a518b0be-99a1-4cbd-9159-e524e4dbfefa.png?width=204&height=456)