Lenovo S300, S405, S400 manual Troubleshooting Password problems, Sleep or hibernation problems

Chapter 5. Troubleshooting

Password problems

I forgot my password.	• If you forget your user password, ask the system
	administrator to clear the user password.
	• If you forget your HDD password, a Lenovo authorized
	servicer cannot reset your password or recover data from
	the hard disk. You must take your computer to a Lenovo
	authorized servicer or a marketing representative to have
	the hard disk drive replaced. Proof of purchase is required,
	and a fee will be charged for parts and service.
	• If you forget your administrator password, a Lenovo
	authorized servicer cannot reset your password. You must
	take your computer to a Lenovo authorized servicer or a
	marketing representative to have the system board
	replaced. Proof of purchase is required, and a fee will be
	charged for parts and service.

Sleep or hibernation problems

The critical low-battery error message appears, and the computer immediately turns off.

The computer enters sleep mode immediately after Power-on self-test (POST).

•The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

•Make sure that:

-The battery is charged.

-The operating temperature is within the acceptable range. See “Chapter 2. Use and care Information” of Lenovo Safety and General Information Guide.

Note: If the battery is charged and the temperature is within range, have the computer serviced.

The computer does not return	• If the computer does not return from sleep mode, it may
from sleep mode and the	have entered hibernation mode automatically because the
computer does not work.	battery is depleted. Check the power indicator.
	• If your computer is in sleep mode, connect the AC adapter
	to the computer, then press any key or the power button.
	• If your computer is in hibernation mode or power-off state,
	connect the AC adapter to the computer, then press the
	power button to resume operation.

Note: If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. If the computer is still not reset, remove the AC adapter and the battery.

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