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From the Home screen, tap
1.
Tap Set up SIM card lock.
2.
Tap Lock SIM card, enter your SIM PIN code, then tap OK.
3.
Note: You must activate Lock SIM card before you can change your SIM PIN
code.
Tap Change SIM PIN.
4.
Enter your old SIM PIN code and tap OK.
5.
Enter your new SIM PIN code and tap OK.
6.
Re-type your new SIM PIN code and tap OK.
7.
Make passwords visible
When enabled, password characters display briefly as you touch
them while entering passwords.
From the Home screen, tap
1.
Tap Make passwords visible to create a checkmark and
2.
enable or disable the display of password characters.
Device Administrators
The Device Administration feature allows you to select one or
more administration applications that control your device for
security purposes (for example, if your phone is lost or stolen).
Settings
Security.
➔
Settings
Security.
➔
These applications enforce remote or local device security
policies.
Some of the features a device administration application might
control are:
Setting the number of failed password attempts before the device is
•
restored to factory settings.
Automatically locking the device.
•
Restoring factory settings on the device.
•
Note: If a device uses multiple enabled administration applications, the
strictest policy is enforced.
From the Home screen, tap
1.
Tap Select device administrators.
2.
Select a device administrator and follow the prompts. If no
3.
device administrators are listed, you can download them
from the Play Store.
Unknown sources
This feature allows you to download and install applications from
locations other than Play Store.
From the Home screen, tap
1.
Tap Unknown sources.
2.
Settings
Security.
➔
Settings
Security.
➔
Changing Your Settings
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