1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-ae3eeffb-080e-4736-94d4-d6b3388d7388.png?width=336&height=448)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-d96025c6-ccc0-48d1-94ed-d621ef572f76.png?width=336&height=448)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-813f01e2-f342-4a42-aafe-0f87358ddb32.png?width=336&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/7291123-f-720d035b-9ad9-463d-9770-179f524ec8ec.png?width=336&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/7291123-f-9babc903-5805-4b15-8ccd-5ff1a918c000.png?width=336&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/7291123-f-720d035b-9ad9-463d-9770-179f524ec8ec.png?width=336&height=448)
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