1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2a7c3eb9-5046-4e80-a900-c81c2ae77451.png?width=200&height=358)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-75b3abd8-063a-4b35-91d1-71024cea455e.png?width=200&height=358)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-63ede604-de2d-4c02-b9e9-d5028eb316b7.png?width=200&height=358)
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-6b04f48c-16bd-40a8-befb-40e73047b29b.png?width=200&height=358)
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-0eda86dc-aea8-4cd8-908c-6ec2ff64de45.png?width=200&height=358)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6b04f48c-16bd-40a8-befb-40e73047b29b.png?width=200&height=358)