1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-09014f63-549c-445c-aad8-331d70c074f4.png?width=204&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-40a4563d-fb7e-4bd1-a469-e7298d2e1dd3.png?width=204&height=454)
Press Password & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-a4dc119b-aeae-489f-b339-ea0567305d7e.png?width=204&height=454)
Press System security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-6fc67822-c9f3-4838-9b01-35289e0ca27f.png?width=204&height=454)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-2c383eb6-33e8-405b-9582-c88efeeb5e22.png?width=204&height=454)
2. Turn use of PIN on or off
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-3c55424b-dc0a-4837-afb9-0edb2d8cb365.png?width=204&height=454)
Press the indicator next to "Lock SIM Card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-d5723e87-2306-4b4c-a273-dc8ea6c1fe73.png?width=204&height=454)
Key in your PIN and press the confirm icon.
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/7260822-f-09e75069-eb8b-46be-8766-1bfdc159df2c.png?width=204&height=454)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260822-f-d5723e87-2306-4b4c-a273-dc8ea6c1fe73.png?width=204&height=454)
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