To change the SIM card PIN
1
From the Home screen, tap .
2
Find and tap
Settings
>
Security
>
Set up SIM card lock
>
Change SIM PIN
.
3
Enter the old SIM card PIN and tap
OK
.
4
Enter the new SIM card PIN and tap
OK
.
5
Re-type the new SIM card PIN and tap
OK
.
To change the SIM card PIN2
1
From the Home screen, tap .
2
Find and tap
Settings
>
Call settings
>
Fixed dialling numbers
>
Change
PIN2
.
3
Enter the old SIM card PIN2 and tap
OK
.
4
Enter the new SIM card PIN2 and tap
OK
.
5
Confirm the new PIN2 and tap
OK
.
To unlock 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
.
3
Re-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
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 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.
To unlock the screen using a screen unlock pattern
1
Activate the screen.
2
Draw your screen unlock pattern.
If the unlock pattern you draw on the screen is rejected five times in a row, you can select to
either wait 30 seconds and then try again, or to answer the security question you have
selected.
To change the screen unlock pattern
1
From your Home screen, tap .
2
Find and tap
Settings
>
Security
>
Screen lock
.
3
Draw your screen unlock pattern.
4
Tap
Pattern
.
5
Follow the instructions in your phone.
To disable the screen unlock pattern
1
From your Home screen, tap >
Settings
>
Security
>
Screen lock
.
2
Draw the screen unlock pattern.
3
Tap
Slide
.
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