1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-204c7da6-86bb-4f04-968c-b61cf3d2d13c.png?width=310&height=442)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-9e751f19-8bda-4d3e-9962-0b60ec2c9bf9.png?width=310&height=442)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-c6411302-142c-44e5-9761-323dafba5b89.png?width=310&height=442)
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-d969038d-5b83-4724-b1df-1f7cd79d2d09.png?width=310&height=442)
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-f547720f-3aef-42eb-8b58-845bad551e34.png?width=310&height=442)
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-d969038d-5b83-4724-b1df-1f7cd79d2d09.png?width=310&height=442)
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