1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e7935005-f350-495c-a1eb-bad38fee529e.png?width=206&height=448)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-20f65456-f0b6-4280-a520-4fdcb0f603d5.png?width=206&height=448)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a143a27a-fdae-4acd-8c0e-03273fd87488.png?width=206&height=448)
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-d679da87-cf54-4c89-92ba-bc0037fc6813.png?width=206&height=448)
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-8e35df1a-64d8-4ed8-b40c-213a57559983.png?width=206&height=448)
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-d679da87-cf54-4c89-92ba-bc0037fc6813.png?width=206&height=448)