1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-77386f20-4611-473e-a41a-f1e43616d220.png?width=204&height=366)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b65541f7-465b-41ae-8945-b33122a17be0.png?width=204&height=366)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-390352a1-033f-4a9f-8394-8c8023c42f93.png?width=204&height=366)
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/7140723-f-349482e4-911e-409a-bd07-51c56b0426ad.png?width=204&height=366)
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/7140723-f-6897cf59-5eca-4aa7-82f2-88ee40ba4d57.png?width=204&height=366)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-349482e4-911e-409a-bd07-51c56b0426ad.png?width=204&height=366)