1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c34420d2-9a30-4cd6-a04d-7a05eb6cc1b7.png?width=202&height=362)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-15cb4068-b707-4793-8097-3b02adf2221d.png?width=202&height=362)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bf2cc7c3-55c9-4e43-a319-4f14d9fd3fa6.png?width=202&height=362)
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-2abfe5d6-5216-4127-81c0-3388e50245f6.png?width=202&height=362)
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-71b2c162-ae20-49cb-a5a2-b911158ba5c7.png?width=202&height=362)
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-2abfe5d6-5216-4127-81c0-3388e50245f6.png?width=202&height=362)