1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-54998358-868e-4bae-ba4f-0d97b7486f6b.png?width=206&height=342)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-068a184f-7745-47cf-89d2-54c6a9f7846a.png?width=206&height=342)
Press Security & location.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-2a4395c7-5984-4fbd-a00d-d03126f364d4.png?width=206&height=342)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-960b97a6-97fa-42b0-8b4c-2f52f0a91280.png?width=206&height=342)
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/7100822-f-fe5432ae-fc62-43a0-ae73-2963d398fe73.png?width=206&height=342)
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/7100822-f-1495ddc9-cabd-4abc-be79-98cc9d465cdf.png?width=206&height=342)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-fe5432ae-fc62-43a0-ae73-2963d398fe73.png?width=206&height=342)
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