![Samsung Galaxy A23 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-30455faa-f58a-4c7a-9a6c-db91db18de7b.png?width=150&height=320)
Samsung Galaxy A23 5G
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/7151223-f-59abd2ad-7ceb-43b5-b7c1-87ecc0ae5ea2.png?width=198&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2bee53c4-0a07-415a-b909-093bba87ce28.png?width=198&height=440)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f997fcd5-a569-40bd-83d3-1640cc608a47.png?width=198&height=440)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-96160b52-022b-4958-a051-89842fa919d4.png?width=198&height=440)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d201de90-5e19-40df-8dbe-39386c93ebfd.png?width=198&height=440)
2. Change PIN
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c6e3c1cb-b2a8-470f-b05f-2ee98d69eabe.png?width=198&height=440)
Press Change SIM card PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-31c654fc-91f7-4251-9c06-d850d0752eab.png?width=198&height=440)
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/7151223-f-b9829f8d-ed50-4e6c-b37c-06ca45882f9a.png?width=198&height=440)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d28db81a-d1f0-428b-a4d9-8bf48daf8d0e.png?width=198&height=440)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d28db81a-d1f0-428b-a4d9-8bf48daf8d0e.png?width=198&height=440)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c6e3c1cb-b2a8-470f-b05f-2ee98d69eabe.png?width=198&height=440)