1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7041024-f-4bde18cd-e160-4c52-9d28-fbbd829095ca.png?width=214&height=468)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7041024-f-fbf91fb0-0d92-40c4-8fe1-ddd2cdec9e2e.png?width=214&height=468)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7041024-f-73411d32-6674-4461-9eb6-cc69c58a1ff4.png?width=214&height=468)
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/7041024-f-bc2c0f3c-0c6e-46d8-a2eb-a5924ced27cc.png?width=214&height=468)
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/7041024-f-9ccb8c74-cbd2-437b-9111-4ab9c0bc470b.png?width=214&height=468)
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/7041024-f-bc2c0f3c-0c6e-46d8-a2eb-a5924ced27cc.png?width=214&height=468)