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11.5.6
Credential storage
Use secure credentials
Mark the check box to allow applications to access your phone’s encrypted
store of secure certificates, related passwords and other credentials.
Credential storage is used to establish some kinds of VPN and Wi-Fi
connections. If you have not set a password for the credential storage, this
setting is dimmed.
Install from SD card
Touch to install encrypted certificates from the microSD card.
Set password
Touch to set or change a password for the credential storage (at least 8
characters).
Clear storage
Touch to clear credential storage of all contents and reset its password.
11.6
Applications
You use the Applications settings to view details about the applications
installed on your phone, to manage their data and force them to stop, and
to set whether you want to permit installation of applications that you
obtain from web sites and emails.
Unknown sources
Mark the check box to permit installation of applications that you obtain
from web sites, emails, or other locations other than Google Play Store.
To protect your phone and personal data, download applications only from
trusted sources, such as Google Play Store.
Battery use
Touch to show the status of battery using.
Storage use
Touch to view storage use.
Manage applications
Touch to manage and remove installed applications.
Running services
Touch to open a list of services—applications or parts of applications
that provide services to other applications, or that run even when their
main applications aren’t running. Examples include the Android onscreen
keyboard and the small portion of Google Talk that always listens for
incoming messages. Above each service, one or more gray bars show
what processes the running service needs and how much memory they're
using (how much memory you would recover if you stopped the service).
Depending on the service, when you touch it in the list it either opens a
dialog in which you can stop it or opens its Settings screen.
Development
The Development screen contains settings that are useful for developing
Android applications. For full information, including documentation of the
Android applications and development tools, see the Android developer
web site (http://developer.android.com).
•
USB debugging: mark the check box to permit debugging tools on a
computer to communicate with your phone via a USB connection.
•
Stay awake: mark the check box to prevent the screen from dimming
and locking when the phone is connected to a charger or to a USB
device that provides power. Don’t use this setting with a static image on
the phone for long periods of time, or the screen may be marked with
that image.
