1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ac691e00-233e-4124-ac91-6911b6a399b7.png?width=204&height=366)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c6b80a93-48d0-4e18-9f37-c3ce3ed5b74a.png?width=204&height=366)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0c707419-d754-4bf5-8ea4-53f359f4df1f.png?width=204&height=366)
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-9e1c643e-968d-447f-92a0-f16b8c9ebc4e.png?width=204&height=366)
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-d834c182-43bf-4952-81b3-a25837e4cc61.png?width=204&height=366)
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-9e1c643e-968d-447f-92a0-f16b8c9ebc4e.png?width=204&height=366)