![Samsung Galaxy Note20](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ebcc884a-cfe1-43e0-a471-b8f9e715f1d7.png?width=150&height=320)
Samsung Galaxy Note20
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/7151223-f-70bcd2a7-323c-400d-9d82-14d12d680dc0.png?width=206&height=462)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-00293eb8-5587-4e46-bc49-46efa07f9629.png?width=206&height=462)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b549e8ff-c20b-463e-bb90-a2e1f518545b.png?width=206&height=462)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1f990b5f-5d36-4a42-b263-5e44f1bbb10b.png?width=206&height=462)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b73e2939-7f45-4ba8-8da0-0c63aaaf0490.png?width=206&height=462)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-63ec570d-bd08-4201-ae64-6905da11c895.png?width=206&height=462)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-63ec570d-bd08-4201-ae64-6905da11c895.png?width=206&height=462)
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-d56046ce-8fd1-4295-9335-996d23ad15c2.png?width=206&height=462)
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-63ec570d-bd08-4201-ae64-6905da11c895.png?width=206&height=462)