Open Settings
. Select Phone > Phone management > Security settings > Phone and SIM card.
Select from the following:
- Code in use — Select PIN or UPIN, according to your SIM card type.
- PIN code request or UPIN code request — Protect your device and SIM card against unauthorized use. When you switch the device on, you are prompted for the PIN or UPIN code.
- PIN code or UPIN code — To change the current PIN code, enter the old PIN code once, and the new PIN code twice.
- 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 Personal Unblocking Key (PUK) codes. If these codes are not supplied with the SIM card, contact the SIM card vendor.
- Phone autolock period — To automatically lock your device when you do not use it for a defined length of 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. The lock code is used to unlock the device. To avoid unauthorized use of your device, change the lock code. The preset code is 12345. The new code can be 4-255 characters long. Alphanumeric (uppercase and lowercase) characters can be used. The device notifies you if the lock code is not properly formatted. Keep the new code secret and separate from your device.
- Lock if SIM card changed — To prevent the use of your device with an unauthorized 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 — Allow remote locking of the device with a remote lock message.
- Closed user group — Restrict incoming and outgoing calls to specific groups (network service). Select Options > Change > Default to activate the group agreed upon with your service provider, 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 Options > Change > Yes.
The settings available for editing may vary.
To save your settings, select Back.