Settings89BatteryView the amount of battery power consumed by your device.On the Settings screen, tap Battery.• Show battery percentage: Set the device to display the remaining battery life.StorageView 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 specifiedcapacity because the operating system and default apps occupy part of the memory.The available capacity may change when you upgrade the device.SecurityChange 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 allowdevice administrators to apply new policies to the device.• Unknown sources: Set the device to allow the installation of apps from unknownsources.• Encrypt device: Set a password to encrypt data saved on the device. You must enter thepassword each time you turn on the device.Charge the battery before enabling this setting because it may take more than anhour 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 devicewill not be able to read your encrypted files. Disable this setting before resetting thedevice.