Settings147Touch key light duration● : Select the length of time thatthe device waits before turning off the touch key backlight.Display battery percentage● : Set to view the remainingbattery life.Auto adjust screen tone● : Set to save power by adjustingthe brightness of the display.StorageView memory information for your device and memory card.You can also format the memory card.Formatting a memory card will permanently delete alldata from the memory location.The actual available capacity of the internal memory isless than the specified capacity because the operatingsystem and default applications occupy part of thememory.Power savingActivate Power saving mode and change the settings forPower saving mode.CPU power saving● : Set the device to limit some systemresource usage.Screen power saving● : Set the device to decrease thebrightness of the display.Background colour● : Set the device to decrease thebrightness of the background colour of email and Internet.Turn off haptic feedback● : Set to prevent the device fromvibrating when you press the Option key or the Back key, orpress and hold the Power key or the Home key.Learn about power saving● : View information for savingbattery power.
