![Samsung Galaxy A53 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c22b8300-5a30-48e5-9be1-377232e210a2.png?width=150&height=320)
Samsung Galaxy A53 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-6ceee3b6-3165-44ad-8b5f-25133a2d59f0.png?width=202&height=452)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8d79b9d9-337c-4fc8-af1a-cc57dad8ff9f.png?width=202&height=452)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-169bb816-c921-427b-8dcd-e9f233f2e56d.png?width=202&height=452)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-37eb89b7-4f40-43af-8f1a-1121699ac29b.png?width=202&height=452)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4c5a1383-81a8-43a9-ad18-474783508a96.png?width=202&height=452)
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/7151223-f-56a15624-97a3-4b72-bec0-1e4dba4c3d0b.png?width=202&height=452)
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/7151223-f-4175f07e-9786-4332-8fdd-340f1b68f828.png?width=202&height=452)
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-56a15624-97a3-4b72-bec0-1e4dba4c3d0b.png?width=202&height=452)