1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1409db66-831d-44b9-9332-5a8ff531941f.png?width=208&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5152e16b-06cf-424d-ae99-3d11b9335724.png?width=208&height=454)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-94ace9da-65f0-43ac-88b0-051fb57a15e9.png?width=208&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-ea4b51f3-bf8b-4b57-9ea9-5fdb22f2a1fd.png?width=208&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-13ff7cdc-8829-4821-bb5f-1194f22ed431.png?width=208&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-ea4b51f3-bf8b-4b57-9ea9-5fdb22f2a1fd.png?width=208&height=454)