1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-eb555ab4-f8d1-4bdd-b616-012ba4481188.png?width=206&height=444)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bb717be5-ed7c-407c-bb1d-ab51bfcf7c3c.png?width=206&height=444)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-69b9ba29-f254-41ca-bb88-120630b68e13.png?width=206&height=444)
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-f7d9672b-484c-406d-bcc8-9df62e50ff0a.png?width=206&height=444)
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-e7ace9da-d580-44e7-81e6-bafe6d7a81c8.png?width=206&height=444)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f7d9672b-484c-406d-bcc8-9df62e50ff0a.png?width=206&height=444)