1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7271022-f-91449b73-db9c-46aa-849a-e9d797bc91d1.png?width=210&height=456)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7271022-f-49868c36-cf25-4ddd-89d1-2c9b128a24a3.png?width=210&height=456)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7271022-f-7b111250-68e0-4dbd-89f3-6698e83d75cf.png?width=210&height=456)
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/7271022-f-95596495-4ae8-48fe-ab81-c107aa542483.png?width=210&height=456)
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/7271022-f-4f3aac99-ce0d-4c2e-b2bf-1aa1c3705db2.png?width=210&height=456)
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/7271022-f-95596495-4ae8-48fe-ab81-c107aa542483.png?width=210&height=456)
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