1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fc9d48e0-a867-49e7-a6de-2ca7432d17d0.png?width=208&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1abcba8a-051f-455c-be26-74b60663971a.png?width=208&height=454)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e6edf35a-ef6c-4429-a49c-e551dd6a871a.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-f00f42eb-0383-4e50-8eba-c6c22a90c1e4.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-8c2b01cd-5d54-4ada-ae83-c7f81dbbc1bb.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-f00f42eb-0383-4e50-8eba-c6c22a90c1e4.png?width=208&height=454)