Settings
Storage
View memory information for your device and memory card, or format a memory card. On the Settings screen, tap Storage.
Formatting a memory card permanently deletes all data from it.
The actual available capacity of the internal memory is less than the specified capacity because the operating system and default apps occupy part of the memory. The available capacity may change when you upgrade the device.
Security
Change settings for securing the device and the SIM or USIM card.
On the Settings screen, tap Security.
•Device administrators: View device administrators installed on the device. You can allow device administrators to apply new policies to the device.
•Unknown sources: Set the device to allow the installation of apps from unknown sources.
•Verify apps: Set the device to check the apps for harmful content before installing them.
•Encrypt device: Set a password to encrypt data saved on the device. You must enter the password each time you turn on the device.
Charge the battery before enabling this setting because it may take more than an hour to encrypt your data.
•Encrypt external SD card: Set the device to encrypt files on a memory card.
If you reset your device to the factory defaults with this setting enabled, the device will not be able to read your encrypted files. Disable this setting before resetting the device.
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