1. Find "Set up SIM card lock"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-158983d6-5500-4c1e-b728-644c442b86a0.png?width=202&height=414)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8e374bfc-3204-4bae-826e-46616f99962f.png?width=202&height=414)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-eaebaddc-a8b9-4649-8431-6d978d22e24a.png?width=202&height=414)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4f8a05bb-2cfb-4786-99a0-0557847a4efb.png?width=202&height=414)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-653b2431-c4ff-4166-8034-48c4461024a8.png?width=202&height=414)
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-9ca4cb3e-2a8c-4d00-aeef-528b15e5767d.png?width=202&height=414)
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-8bc84a28-fb76-4268-a343-f304fc960a1a.png?width=202&height=414)
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-9ca4cb3e-2a8c-4d00-aeef-528b15e5767d.png?width=202&height=414)