To perform a factory data reset
To avoid permanent damage to your device, do not restart your device while a reset procedure
is underway.
1
Drag the status bar downwards, then tap .
2
Find and tap
Backup & reset
>
Factory data reset
.
3
If you also want to erase data such as pictures and music, which is saved to
your device's internal storage, mark the
Erase internal storage
checkbox.
4
Tap
Reset phone
.
5
To confirm, tap
Erase everything
.
Locking and protecting your device
SIM card protection
The SIM card lock only protects your subscription. Your device will still work with a
new SIM card. If the SIM card lock is on, you have to enter a PIN (Personal Identity
Number). If you enter your PIN incorrectly more times than the maximum number of
attempts allowed, your SIM card will become blocked. You need to enter your PUK
(Personal Unblocking Key) and then a new PIN. Your PIN, PIN2 and PUK are supplied
by your network operator.
To enable the SIM card PIN lock
1
From the
Home screen
, tap .
2
Find and tap
Settings
>
Security
>
Set up SIM card lock
>
Lock SIM card
.
3
Enter the SIM card PIN and tap
OK
.
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 dialing 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
Enter the PUK code and tap
OK
.
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
There are several ways to lock the screen on your device. 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.
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.
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