LG LGVS920 - Manual (Page 148)

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Settings
Security
Use the Security settings to configure how to help secure your phone and
its data.
ENCRYPTION
Encrypt device: Opens a screen that encrypts data on the device for
security. You will be required to enter a PIN or password to decrypt your
phone each time you power it on.
Enable storage encryption: Opens a screen that enable/disable storage
encryption and synchronize with previous encrypted data. You will be
required to enter a PIN or password to decrypt your storage each time
you insert a microSD card.
SIM CARD LOCK
Set up SIM card lock: Opens a screen to set if you want to require a
PIN to use or, if set, allows you to change the PIN.
PASSWORDS
Password typing visible: Checkmark to briefly show each character of
passwords as you enter them so that you can see what you enter.
DEVICE ADMINISTRATION
Device administrators: Add or remove device administrators.
Unknown sources: Allow installation of non-Market application.
CREDENTIAL STORAGE
Trusted credentials: Checkmark to allow applications to access your
phone’s encrypted store of secure certificates and related passwords
and other credentials. You use credential storage to establish some kinds
of VPN and Wi-Fi connections. If you have not set a password for the
secure credential storage, this setting is dimmed.
Install from storage: Tap to install a secure certificate from a microSD
card.
Clear credentials: Deletes all secure certificates and related credentials
and erases the secure storage's own password, after prompting you to
confirm that you want to do this.