To unblock a locked SIM card
1
When
Enter PUK and new PIN code
appears, enter the PUK code.
2
Enter a new PIN code and tap
OK
.
If you enter an incorrect PUK code too many times, the SIM card becomes blocked. 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
1
From your Home screen, tap >
Settings
>
Security
>
Screen lock
.
2
Select 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
1
From your Home screen, tap >
Settings
>
Security
>
Screen lock
.
2
Tap
Face Unlock
, then follow the instructions in your phone to capture your
face.
3
After 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.
To unlock the screen using the Face Unlock feature
1
Activate the screen.
2
Look at your phone from the same angle you used to capture your Face
Unlock photo.
If Face Unlock fails to recognise your face, you need to draw the backup pattern or PIN to
unlock the screen.
To disable the Face Unlock protection
1
From your Home screen, tap >
Settings
>
Security
>
Screen lock
.
2
Draw your backup screen unlock pattern or enter your PIN.
3
Tap
Slide
.
To create a screen unlock pattern
1
From the Home screen, tap .
2
Find and tap
Settings
>
Security
>
Screen lock
>
Pattern
.
3
Follow the instructions in your phone. You are asked to select a security
question that will be used to unlock the phone if you forget your screen unlock
pattern.
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