1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-21d7a905-4c75-4f06-9feb-a01b697fcf2d.png?width=192&height=340)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-5eff80d5-cab0-49af-a0f8-8a0b7eeaf751.png?width=192&height=340)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-97ee239f-2734-46d0-bf03-c58eb92ebe30.png?width=192&height=340)
2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7100822-f-00d9bcaa-2ffc-4be6-9b20-011f9d48903c.png?width=192&height=340)
Key in your PIN and press Done.
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-e706cb94-e842-4901-9d00-aaf49fe63416.png?width=192&height=340)
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-00d9bcaa-2ffc-4be6-9b20-011f9d48903c.png?width=192&height=340)
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