Zte Z852 User Manual page 156

Unknown sources: Switch on 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 microSDXC 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.
See Protecting Your Phone With Screen
Apps with usage access: Turn on or off some apps'

access to your phone usage information.
Accounts
Touch the Home key >
your web accounts and synchronization. Touch Add account to
sign in to or create accounts on your phone.
Touch an account type to see that type of accounts you have
added and adjust the accounts settings.
Google
Touch the Home key >
> Settings > Accounts to manage
> Settings > Google to easily
156
Pinning.