1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-6e1a0fe6-083b-4ced-8d19-319ccee1427c.png?width=206&height=464)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-54bab751-adff-4cf6-8d7e-536eda42b6b6.png?width=206&height=464)
Press Password & security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-3b3e8671-21ce-4b1d-bbf8-e08774e8186f.png?width=206&height=464)
Press System security.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-3e651499-e93a-46c7-9560-8d3d083b5b06.png?width=206&height=464)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-6d924ee3-4d6b-4501-b3d4-c045448779c9.png?width=206&height=464)
2. Turn use of PIN on or off
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-16b3ba91-dc27-4f2c-bc4e-7a3562863b15.png?width=206&height=464)
Press the indicator next to "Lock SIM Card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-ed25c1c8-9b18-4198-aa27-9eea339495a5.png?width=206&height=464)
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/7260623-f-2b8d3b99-ca7c-4dfc-a803-6485e05383af.png?width=206&height=464)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7260623-f-ed25c1c8-9b18-4198-aa27-9eea339495a5.png?width=206&height=464)
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