1. Turn on your phone
Press and hold On/Off until your phone is turned on.
Press the Home key.
2. Enter your PIN
Press SIM Card.
If your SIM is locked, key in your PIN and press OK.
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.
3. Turn off your phone
Press and hold On/Off.
Press and drag the power off icon right.