User Guide

Settings 94
SIM card lock
Set up SIM card lock
As a security measure, you can choose to require a PIN for
accessing the SIM card to use your device.
1. From the Home screen, touch
Apps ➔
Settings ➔ Security .
2. Touch
Set up SIM card lock for these settings:
•Lock SIM card : Enable to require a PIN be entered for access
to the SIM card, then set the PIN.
• Change SIM PIN : Enter a new PIN for accessing the SIM card.
Passwords
Make passwords visible
When enabled, password characters will display briefly as
you enter them.
1. From the Home screen, touch
Apps ➔
Settings ➔ Security .
2. Touch
Make passwords visible to enable or disable brief
displays of password characters.
Device administration
Device administrators
Add or remove device administrators, used by some
applications when synchronizing with your device.
1. From the Home screen, touch
Apps ➔
Settings ➔ Security .
2. Touch
Device administrators to select administrators.
Available administrators depend on the accounts you
have set up.
Unknown sources
When enabled, apps can be installed from sources other than
Google Play.
1. From the Home screen, touch
Apps ➔
Settings ➔ Security .
2. Touch
Unknown sources to enable or disable the
setting.