1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d1b44777-51da-4128-8e00-84a15f771d94.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d5ef50ce-aee0-41d7-afb4-6337d836f2cd.png?width=210&height=454)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-99bc5480-d6f4-41a1-9578-9f916672a9ef.png?width=210&height=454)
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-d35c1a3c-001d-420e-be50-62ee1c792d4b.png?width=210&height=454)
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-b9048cdb-920f-42d0-8dd9-9b69f87f4229.png?width=210&height=454)
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-d35c1a3c-001d-420e-be50-62ee1c792d4b.png?width=210&height=454)