![Samsung Galaxy S21+ 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-032ce11e-9f81-474c-8174-5412829aef58.png?width=150&height=320)
Samsung Galaxy S21+ 5G
Android 11.0
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-dadd74e0-d502-4515-a803-0b1f0188f4a9.png?width=206&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-757fc35f-f21a-4cb4-860a-e9c9f3bef234.png?width=206&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-61cee3d7-7133-4af3-a493-a3cbe69384ec.png?width=206&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3a2207ac-8f60-45d9-a8a4-1d4ad49846af.png?width=206&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c1e3a87b-745b-418f-a438-0879ea9ae29f.png?width=206&height=456)
2. Change PIN
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed71b6bf-9f95-4172-b730-0df185aa895c.png?width=206&height=456)
Press Change SIM card PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed71b6bf-9f95-4172-b730-0df185aa895c.png?width=206&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/7151223-f-7bf358d4-b4dc-4e85-ac1e-3245f3cd1d93.png?width=206&height=456)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4f8e7e65-a591-4415-a470-0629b2a278fe.png?width=206&height=456)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d186c773-bb08-4109-bb22-dafff330ec13.png?width=206&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/7151223-f-ed71b6bf-9f95-4172-b730-0df185aa895c.png?width=206&height=456)