Lenovo B5400 Touch User Manual page 32

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Chapter 4. Troubleshooting
Sound problems
No sound can be heard
from the speakers even
when the volume is turned
up.
Battery problems
Your computer shuts down
before the power and
battery status indicator
shows empty.
-or-
Your computer operates
after the power and battery
status indicator shows
empty.
The computer does not
operate with a fully charged
battery.
A hard disk drive problem
The hard disk drive does
not work.
26
• Make sure that:
- The mute function is off.
- The combo audio jack is not used.
- The speakers are selected as the playback device.
• Reset the battery gauge using Lenovo Energy
Management. If the problem persists, replace with a
new battery pack.
• 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.

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