D E V I C E S T A T U S L I G H T S
Turns on when you turn on the computer and blinks when the computer is in a power management mode.
Turns on steadily or blinks to indicate battery charge status. Turns on when the computer reads or writes data.
NOTICE: To avoid loss of data, never turn off the computer while the light is flashing.
Turns on when Bluetooth® wireless technology is enabled.
NOTE: Bluetooth wireless technology is an optional feature on your
computer, so the icon turns on only if you ordered Bluetooth wireless technology with your computer. For more information, see the documentation that came with your Bluetooth wireless technology.
If the computer is connected to an electrical outlet, the 
light operates as follows:
–Solid blue: The battery is
–Flashing amber: The battery is charging.
If the computer is running on a battery, the 
light operates as follows:
–Solid blue: The battery is
–Solid amber: The battery is in low battery state.
P O W E R B U T T O N — Press the power button to turn on the computer or exit a power management mode (see "Power Management Modes" on page 33).
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