Zte VFD 512 User Manual page 65


Encrypt phone: Touch
Security > Encrypt phone to encrypt your accounts,
settings, downloaded apps and their data, media and other
files.

Set up SIM card lock:
Lock SIM card: Activate or deactivate the PIN lock to

require PIN before accessing the nano-SIM card.
Change SIM PIN: Change the PIN used to access the

nano-SIM card.
NOTE:
Put all your confidential passwords in a safe place for
future use. If you enter the wrong SIM PIN more times than
allowed, your nano-SIM card will be locked and you
cannot access the mobile phone network. Contact your
operator for a PIN Unlock Key (PUK) to restore the
nano-SIM card.

Make passwords visible: Display passwords as you enter
them.

Device administrators: View or deactivate apps you have
authorised to be device administrators.

Unknown sources: Check this option to permit
installation of apps from sources other than the Play Store.

Storage type: Check the credential storage type.

Trusted credentials: Display trusted CA certificates.

User credentials: View and modify stored credentials.

Install from SD card: Install certificates from the internal
storage or the microSD card.

Clear credentials: Delete all certificates.

Trust agents: View or deactivate trust agents.

Screen-pinning: Keep a screen of your choice in view, so
that others cannot switch to other apps and access your
personal information. Touch this option to see how it
works.

Apps with usage access: Turn on or off some apps'
access to your phone usage information.
> > Settings >
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