Sharp AQUOS Crystal - Manual (Page 147)

Settings 137
Device Administrator
The Device administrator setting lets you view or deactivate device administrators.
1. From home, touch > Settings > Security.
2. Touch Device administrator and then touch an option to activate or deactivate it.
Unknown Sources
The Unknown Sources setting allows or denies installation of apps from sources other than the
Google Play Store app.
1. From home, touch > Settings > Security.
2. Touch Unknown sources to enable it.
Verify Apps
The Verify apps setting enables or disables a warning before installing apps that may cause harm.
1. From home, touch > Settings > Security.
2. Touch Verify apps to enable it.
Storage Type
You can check the type of credentials stored.
1. From home, touch > Settings > Security.
2. Check the storage type displayed under Storage type.
Trusted Credentials
You can check the trusted CA certificates you’ve installed.
1. From home, touch > Settings > Security.
2. Touch Trusted credentials to view the trusted certificates.
Install from microSD
You can install encrypted certificates from an installed microSD card.
1. From home, touch > Settings > Security.
2. Touch Install from microSD to install certificates from your microSD card.