Settings 118Device AdministratorsView, add or remove device administrators.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Device administrators. Touch deviceadministrators.Unknown SourcesWhen this option is enabled, you can install applications fromsources other than Google Play® Store.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Unknown sources to enable or disable the option.Warning! Because this device can be configured with systemsoftware not provided by or supported by Google orany other company, end-users operate these devicesat their own risk.Credential storageTrusted CredentialsYou can install credentials from an installed memory card,and use the Credential storage settings to allow applicationsto access the secure certificates and other credentials.Trusted Credentials1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Trusted credentials to view certificates you’veinstalled.Install from Device StorageInstall encrypted certificates from an installed memory card.Note: You must have installed a memory card containingencrypted certificates to use this feature.1. From the Home screen, touch Apps ➔Settings ➔ Security.2. Touch Install from device storage. Choose a certificateand follow the prompts to install.