1. Find ""
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press the tab.
Press .
Press .
2. Turn use of PIN on or off
Press to turn the function on or off.
Key in your PIN and press .
If you enter an incorrect PIN three times in a row, it will be blocked. To unblock your PIN, you need to key in the PUK which you can retrieve by contacting customer services. 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.
3. Return to the home screen
Press the Home key to return to the home screen.