1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d95ca03b-d920-4892-874e-7bed3b9e9118.png?width=198&height=444)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-959db516-1c79-4ce5-91d4-fce3a084b717.png?width=198&height=444)
Press Security & biometrics.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-627c23de-919c-4b30-a653-41aeeedcd623.png?width=198&height=444)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-67af794f-cc3e-4a9f-8d5c-16ae719fd9cd.png?width=198&height=444)
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-c53611a3-f279-4fbd-bbcf-e643ee7b2fc2.png?width=198&height=444)
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-bf7fa88e-761f-4ed2-9ca6-5351d08bc946.png?width=198&height=444)
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-c53611a3-f279-4fbd-bbcf-e643ee7b2fc2.png?width=198&height=444)