1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3fe3bdfe-79e0-401b-8a27-deafb31dba20.png?width=208&height=312)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4362dcea-98bc-4fab-8724-974fd4382ac6.png?width=208&height=312)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d99a4f76-b773-4668-8b30-35e980da0502.png?width=208&height=312)
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-153a04b8-2c8f-497a-8270-9a0bb96226f9.png?width=208&height=312)
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-9f0e0db9-c80a-4ed3-8e66-aa9808187129.png?width=208&height=312)
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-153a04b8-2c8f-497a-8270-9a0bb96226f9.png?width=208&height=312)