1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bdce6e81-bc6e-4fd7-896b-f0419053b5de.png?width=204&height=366)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5d713b47-a5f0-43f5-ae5d-cbafad5a892c.png?width=204&height=366)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-42a69346-bb9b-4b82-968c-0e76c6e1d095.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-8c06aa2a-30d5-498d-817a-a7d428be9b0a.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-398a82a6-6fe9-49a3-bbbb-d1625a14aa1f.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-8c06aa2a-30d5-498d-817a-a7d428be9b0a.png?width=204&height=366)