To set up a SIM card lock
1
From the Home screen, tap .
2
Find and tap
Settings
>
Lock screen & security
>
Set up SIM card lock
.
3
Drag the slider beside
Lock SIM card
to the right.
4
Enter the SIM card PIN and tap
OK
. The SIM card lock is now active and you
will be prompted to enter the PIN every time you restart the device.
To remove a SIM card lock
1
From the Home screen, tap .
2
Find and tap
Settings
>
Lock screen & security
>
Set up SIM card lock
.
3
Drag the slider beside
Lock SIM card
to the left.
4
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
>
Lock screen & security
>
Set up SIM card lock
.
3
Tap
Change SIM PIN
.
4
Enter the old SIM card PIN and tap
OK
.
5
Enter the new SIM card PIN and tap
OK
.
6
Re-type the new SIM card PIN and tap
OK
.
To unlock a blocked SIM card using the PUK code
1
Enter the PUK code and tap
.
2
Enter a new PIN code and tap
.
3
Re-enter the new PIN code and tap
.
If you enter an incorrect PUK code too many times, you need to contact your network operator
to get a new SIM card.
Finding the identification number of your device
Your device has a unique ID (identification) number. In your device, this number is
referred to as the IMEI (International Mobile Equipment Identity). You should keep a
copy of this number. You may require it, for example, when you access the Xperia™
Care support service and need to register your device. Also, if your device is stolen,
some network providers can use this number to stop the device from accessing the
network in your country.
To view your IMEI number on the label tray
1
Open the cover for the nano SIM and memory card slot.
2
Place a fingernail or other object with a long, fine tip under the edge of the
label tray, then drag the tray outwards. The IMEI number is displayed on the
label tray.
To view the IMEI number, you can also open the phone dialer and enter
*#06#
.
To view your IMEI number via the device settings
1
From your Home screen, tap .
2
Find and tap
Settings
>
About phone
>
Status
>
IMEI information
.
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