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/7140723-f-9056d521-9f09-48e8-a282-7e7c1a536210.png?width=200&height=448)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40fcd549-bfae-4bb9-accf-5350fe575643.png?width=200&height=448)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c0e39fbd-1329-4045-8ef6-09ae8ebcc024.png?width=200&height=448)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3e12a094-5e5e-4512-a351-07c692e50b23.png?width=200&height=448)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-11193ef1-41ac-480e-af12-c1cea092c821.png?width=200&height=448)
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/7140723-f-2ef75803-d4b3-493a-9acf-07b14bf3bda9.png?width=200&height=448)
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. The PUK can be obtained by contacting customer services. 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/7140723-f-a2018c0b-00ae-48c3-b9ad-2ccd760c1775.png?width=200&height=448)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2ef75803-d4b3-493a-9acf-07b14bf3bda9.png?width=200&height=448)