1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-91da5c49-9921-4eff-9fd8-9253d0e32b9c.png?width=192&height=340)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9e8fc774-50fc-446e-8d22-b9e11132d9c2.png?width=192&height=340)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c26f7807-7c93-40f9-a326-59dd9c416613.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/7140723-f-0d5b008e-236d-4217-9b36-fa3190e3470f.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/7140723-f-f7d3b56c-b079-4734-94d9-82926c432db4.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/7140723-f-0d5b008e-236d-4217-9b36-fa3190e3470f.png?width=192&height=340)