Open Settings
, and select General > Security > Phone and SIM card and from the following:
- Code in use — Select PIN or UPIN, according to your SIM card type.
- PIN code request or UPIN code request — To protect your device and SIM card against unauthorised use, select On. When you switch the device on, it asks for the PIN code.
- PIN code or UPIN code — To change the current PIN code, enter the old PIN code once and the new PIN code twice.
 | Tip: The PIN codes are saved on your SIM card, not in the device memory. The PIN settings only affect the current SIM card. |
- PIN2 code — The PIN2 code may be supplied with your SIM card. To change the code, enter the old PIN2 code once, and the new PIN2 code twice. The PIN2 code is required to access some network services. Your SIM card must support these services. If you enter a wrong PIN code too many times, your PIN code may be blocked. To unblock the PIN code, you need PUK (personal unblocking key) codes. If these codes are not supplied with the SIM card, contact the SIM card vendor.
- Keypad autolock period — To automatically lock the keypad and prevent accidental keypresses when you do not use your device for a defined time, select User defined. Enter the time-out period.
 | Tip: To use the keypad again, press the left selection key and * in quick succession. |
- Phone autolock period — To automatically lock your device when you do not use it for a defined time, select Change > User defined. Enter the time-out period. You need the lock code to change this setting. To automatically lock your device when you do not use it for a defined time, select Options > Change > User defined. Enter the time-out period. You need the lock code to change this setting.
- Lock code — The lock code is used to unlock the device. To change the current lock code, enter the old code once and the new lock code (5 digits) twice.
- Lock if SIM card changed — To prevent the use of your device with an unauthorised SIM card, select Change > Yes. The device now asks for the lock code every time a new SIM card is inserted. To prevent the use of your device with an unauthorised SIM card, select Options > Change > Yes. The device now asks for the lock code every time a new SIM card is inserted.
- Remote phone locking — To enable locking your device with a text message, if the device is lost or stolen, select Enabled. Write the locking message. You may need to enter the lock code to change this setting. To use a remotely locked device again, enter the lock code.
- Closed user group — This network service enables you to restrict incoming and outgoing calls to specific groups. Select Change > Default to activate the group agreed upon with your network operator, or On to enter the index number of another group. This network service enables you to restrict incoming and outgoing calls to specific groups. Select Options > Change > Default to activate the group agreed upon with your network operator, or On to enter the index number of another group.
- Confirm SIM services — To display the confirmation messages sent between the device and the network when you use network services supported by your SIM card, select Change > Yes. To display the confirmation messages sent between the device and the network when you use network services supported by your SIM card, select Options > Change > Yes.
The settings available for editing may vary.
To save your settings, select Back.