96Menu functionsReceiving data via BluetoothTo receive data via Bluetooth, your phone’s Bluetoothfeature must be active and its visibility must beenabled.If an unauthorised Bluetooth device sends data to yourphone, press <Yes> to allow the device to accessyour phone.Security (Menu 9.7)Use this menu to protect the phone againstunauthorised use by managing the several accesscodes of your phone and SIM card.PIN check (Menu 9.7.1)The 4-to 8-digit PIN (Personal Identification Number)protects your SIM card against unauthorised use.When this feature is enabled, the phone requires yourPIN each time it is switched on.Change PIN (Menu 9.7.2)Use this menu to change your PIN. The PIN checkfeature must be enabled to change the PIN.Phone lock (Menu 9.7.3)Use this menu to protect the phone from unauthoriseduse. When this feature is enabled, you must enter a 4-to 8-digit phone password each time the phone isswitched on.The password is preset to 00000000. To change thepassword, use the Change password menu.Change password (Menu 9.7.4)Use this menu to change your phone password.If you enter an incorrect PIN/PIN2 three times insuccession, the SIM card is blocked. To unblock it,you need to enter your PUK/PUK2 (PersonalUnblocking Key). The codes are supplied by yourservice provider.