Lenovo G400 User Manual page 33

Sound problems
No sound can be heard
from the speaker even
when the volume is turned
up.
Battery problems
Your computer shuts down
before the battery status
indicator shows empty.
-or-
Your computer operates
after the battery status indi-
cator shows empty.
The computer does not
operate with a fully charged
battery.
A hard disk drive problem
The hard disk drive does
not work.
OneKey Recovery system problems
Backup cannot be made.
Failure to restore the
system partition to its
factory default.
• Make sure that:
- The Mute function is off.
- The combo audio jack is not used.
- The speaker is selected as the playback device.
• Discharge and recharge the battery.
• The surge protector in the battery might be active.
Turn off the computer for one minute to reset the
protector; then turn on the computer again.
• Make sure that the hard disk drive is included in the
Boot menu in the BIOS setup utility correctly.
• You are not currently using a Windows operating
system.
• There is not enough space to store the backed up
data. You will need to free more hard disk space on
your backup partition.
• The system partition, such as the partition size or the
drive capacity has been modified.
Chapter 4. Troubleshooting
29