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Chapter 5. Troubleshooting
Password problems
I forgot my password.
•
If you forget your user password, you must take your
computer to a Lenovo authorized servicer or a marketing
representative to have the password changed.
•
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 supervisor 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
•
The battery power is getting low. Connect the AC adapter to
message appears, and the
the computer, or replace the battery with a fully charged
computer immediately turns off.
one.
The computer enters sleep
•
Make sure that:
mode immediately after Power-
- The battery is charged.
on self-test (POST).
- 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 com-
have entered hibernation mode automatically because the
puter 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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