To enable the SIM card PIN lock

1From the Home screen, tap .

2Find and tap Settings > Security > Set up SIM card lock > Lock SIM card.

3Enter the SIM card PIN and tap OK.

To change the SIM card PIN

1From the Home screen, tap .

2Find and tap Settings > Security > Set up SIM card lock > Change SIM PIN.

3Enter the old SIM card PIN and tap OK.

4Enter the new SIM card PIN and tap OK.

5Re-type the new SIM card PIN and tap OK.

To change the SIM card PIN2

1From the Home screen, tap .

2Find and tap Settings > Call settings > Fixed dialing numbers > Change PIN2.

3Enter the old SIM card PIN2 and tap OK.

4Enter the new SIM card PIN2 and tap OK.

5Confirm the new PIN2 and tap OK.

To unlock a locked SIM card

1When Enter PUK and new PIN code appears, enter the PUK code.

2Enter a new PIN code and tap OK.

3Re-enter the new PIN code and tap OK.

If you enter an incorrect PUK code too many times, the SIM card becomes locked. If this happens, contact your service provider to get a new SIM card.

Setting a screen lock

There are several ways to lock your phone screen. For example, you can use the Face Unlock feature, which uses a picture of your face to unlock the screen. You can also set a screen unlock pattern, a number-based PIN lock, or a text-based password.

To set a screen lock

1From your Home screen, tap > Settings > Security > Screen lock.

2Select an option.

It is very important that you remember your screen unlock pattern, PIN or password. If you forget this information, it may not be possible to restore important data such as contacts and messages. Refer to Sony Customer support for more information.

To set up the Face Unlock protection

1From your Home screen, tap > Settings > Security > Screen lock.

2Tap Face Unlock, then follow the instructions in your phone to capture your face.

3After your face is successfully captured, set up screen lock Pattern or PIN as a backup method to unlock the screen. For more information, refer to 'To create a screen unlock pattern' or 'To create a screen unlock PIN'.

The Face Unlock feature is less secure than a screen lock pattern, PIN, or password. Someone who looks similar to you could unlock your phone.

For best results, capture your face in an indoor area that is well lit but not too bright and hold the phone at eye level.

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Sony C6502RED, 1270-4315, 1270-6440, 1270-6439, 1270-6441 manual Setting a screen lock
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1270-6439, 1270-6440, 1270-6441, 1270-4315, C6502RED specifications

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