1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-71405d83-2b08-4846-98e6-c658c610e4e5.png?width=202&height=362)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c69e89a1-6a00-423b-8334-dafc0c0256be.png?width=202&height=362)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c88ba986-9315-44df-8cb7-52c7539231ff.png?width=202&height=362)
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-7998ef2b-0700-4eb1-93bb-96dc5624adc8.png?width=202&height=362)
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-7c90d8a5-06fc-4df6-a557-dfe0be54bd2d.png?width=202&height=362)
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-7998ef2b-0700-4eb1-93bb-96dc5624adc8.png?width=202&height=362)