Zte Blade A3 Prime User Manual page 120

NOTE:
You need to sign in to your Google account on the phone to use
all the Smart Lock features.

Device admin apps: Activate or deactivate apps to be device
administrators.

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
network. Contact your operator for a PIN Unlock Key (PUK) to
restore the nano-SIM card.

Encryption & credentials: Check the encryption status of your
phone and set the credential storage options.

Trust agents: Activate or deactivate trust agents.

Screen pinning: Keep a screen of your choice in view so that
others cannot switch to other apps and access personal
information (see Protecting Your Phone With Screen
120
Pinning).