![Samsung Galaxy A15 5G](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-c31a9ffb-e406-4c35-af3c-fed02fb67c2a.png?width=150&height=320)
Samsung Galaxy A15 5G
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/7050424-f-b98be273-1ac3-4bfe-9946-256b162eb091.png?width=206&height=446)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-9c5221b0-14c2-49ba-8a36-d8875027d3a4.png?width=206&height=446)
Press Security and privacy.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-d90bf982-c4a3-4a9f-8cbc-77bf9979d4cf.png?width=206&height=446)
Press More security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-82d50488-1cfc-4f59-9c6f-0bb96168ab7f.png?width=206&height=446)
Press SIM card security.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-10b83a40-9943-4147-a4b1-6d93d9ddddfe.png?width=206&height=446)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-a24e4d81-9b80-4bad-9d34-754622fc6e0b.png?width=206&height=446)
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/7050424-f-aa8aecc7-9380-40f5-9087-59e6761f83e4.png?width=206&height=446)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7050424-f-a24e4d81-9b80-4bad-9d34-754622fc6e0b.png?width=206&height=446)