Lenovo ThinkPad 11e - Manual (Page 110)

If the battery is charged and the temperature is within range, have the computer serviced.
• Problem: A critical low-battery error occurs, and the computer immediately turns off.
Solution: The battery power is getting low. Connect the ac power adapter to the computer and to an
electrical outlet.
• Problem: The computer display remains blank after you press Fn to return from sleep mode.
Solution: Check whether an external monitor was disconnected or turned off while the computer was
in sleep mode. If you disconnected or turned off the external monitor, connect it or turn it on before
resuming the computer from the sleep mode. When resuming the computer from the sleep mode
without attaching the external monitor or turning it on, and the computer display remains blank, press
F7 to bring up the computer display.
Notes:
– If you are using F7 to apply a presentation scheme, you will need to press F7 at least three times in
three seconds to bring up the computer display.
– If your computer is a Windows 7 model, it does not support the presentation scheme.
• Problem: The computer does not return from sleep mode, and the computer does not work.
Solution: If the computer does not return from sleep mode, it might have entered sleep or hibernation
mode automatically because the battery is depleted. Check the system-status indicator (illuminated
ThinkPad logo).
– If the system-status indicator (illuminated ThinkPad logo) blinks slowly, your computer is in sleep mode.
Connect the ac power adapter to the computer; then press Fn.
– If the system-status indicator (illuminated ThinkPad logo) is off, your computer is in power-off state or
in hibernation mode. Connect the ac power adapter to the computer; then press the power button
to resume operation.
If the system still does not return from sleep mode, your system might stop responding and you might not
be able to turn off the computer. In this case, you need to reset the computer. If you have not saved
your data, it might be lost. To reset the computer, press and hold the power button for four seconds or
more. If the system is still not reset, remove the ac power adapter.
• Problem: Your computer does not enter sleep or hibernation mode.
Solution: Check whether any option has been selected to disable your computer from entering sleep
or hibernation mode.
If your computer tries to enter sleep mode but the request is rejected, the device attached to the USB
connector might have been disabled. If this occurs, do a hot-unplug-and-plug operation for the USB
device.
• Problem: The battery discharges slightly while the computer is in hibernation mode.
Solution: If the wake-up function is enabled, the computer consumes a small amount of power. This is
not a defect. For details, refer to “Power-saving modes” on page 32.
Problems with drives and other storage devices
This section includes hard disk drive problems and a solid-state drive problem.
Hard disk drive problems
• Problem: The hard disk drive makes a rattling noise intermittently.
Solution: The rattling noise might be heard:
94 User Guide