1. Find "SIM card lock"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-bfec3d4e-595c-4b52-b7ab-39742b9e3cd1.png?width=206&height=412)
Press Security & location.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-20497d17-000f-496c-afaa-1217bdef9d20.png?width=206&height=412)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-6ffda011-8677-4143-960b-03b9d51150d5.png?width=206&height=412)
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-2a8094ab-3fc6-423a-abf7-400791cd3679.png?width=206&height=412)
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-90f47d4c-ea62-4215-9aee-e4a9aa9e5a98.png?width=206&height=412)
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-2a8094ab-3fc6-423a-abf7-400791cd3679.png?width=206&height=412)
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