Settings 170
SIM Card Lock
Prevent another user from using your SIM card to make
unauthorized calls or from accessing information stored on
your SIM card by protecting the information using a PIN code.
1.
From a Home screen, touch
Apps
➔
Settings
➔
Security
2.
Touch
Set up SIM card lock
.
3.
Touch
Lock SIM card
, enter your SIM PIN code, and
touch
OK
.
Note:
You must activate Lock SIM card before you can change
your SIM PIN code.
4.
Touch
Change SIM PIN
.
5.
Enter your old SIM PIN code and touch
OK
.
6.
Enter your new SIM PIN code and touch
OK
.
7.
Re-type your new SIM PIN code and touch
OK
.
Passwords
When enabled, password characters display briefly as you
touch them while entering passwords.
1.
From a Home screen, touch
Apps
➔
Settings
➔
Security
.
2.
Touch
Make passwords visible
to enable or disable brief
displays of password characters.
When enabled, a check mark
appears in the
check box.
Device Administration
To add or remove device administrators:
1.
From a Home screen, touch
Apps
➔
Settings
➔
Security
.
2.
Touch
Device administrators
.
Enable or disable installation of non-Google Play
applications.
1.
From a Home screen, touch
Apps
➔
Settings
➔
Security
.
2.
Touch
Unknown sources.
An informational pop-up displays.
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