Settings
77
1. On the home screen, touch then the
All
tab.
2. Under
PERSONAL
, touch
Security
.
3. Touch
Set up SIM/USIM card lock
.
4. Select the
Lock SIM card
check box.
5. Enter the PIN.
6. Touch
OK
.
If you incorrectly enter the PIN a specified number of consecutive times, the
PIN is blocked and the phone prompts you to enter the PIN unblocking key
(PUK). If you incorrectly enter the PUK a specified number of consecutive
times, the SIM card will be disabled permanently. For details about the
maximum retry attempts for the PIN and PUK, contact your service provider.
Restoring factory settings
Restoring your phone to its factory settings erases all your personal data from the
phone, including your email accounts, system and application settings, and
installed applications.
Back up important data on your phone before you restore factory settings.
1. On the home screen, touch then the
All
tab.
2. Under
PERSONAL
, touch
Backup & reset
.
3. Touch
Factory data reset
>
Reset phone
>
Reset phone
.
The phone will restore its factory settings and restart.
Online update
Once in a while, new updates for your phone will be available online. You will
receive a notification when updates are available. Before updating, make sure
your phone has enough storage space for the update package.
To update your phone manually, go to the home screen, touch >
About
phone
>
System updates
>
Online updates
to check for updates, and follow
the onscreen instructions to update your phone online.
All your personal data may be erased during a system update. It is
recommended that you back up important data before updating your
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