Settings167Application managerView and manage the applications on your device.BatteryView the amount of battery power consumed by your device.Power saving modeActivate power-saving mode and change the settings for power-saving mode.• CPU power saving: Set the device to limit some system resource usage.• Screen power saving: Set the device to decrease the brightness of the display.• Turn off haptic feedback: Set the device to turn off the vibration when touching keys.• Learn about Power saving: Discover how to reduce battery consumption.StorageView memory information for your device and memory card, or format a memory card.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 applications occupy part of thememory. The available capacity may change when you upgrade the device.SecurityChange settings for securing the device and the SIM or USIM card.• 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.