Lenovo 6072BVU User Manual - Page 168

Updating, flashing, CD-ROM, diskette, Recovering, POST/BIOS, update, failure

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Updating (flashing) BIOS from a CD-ROM or diskette This section describes how to update (flash) the BIOS using a CD-ROM or diskette. system program updates are available at http://www.lenovo.com/support on the World Wide Web. 1. To update (flash) the BIOS: v If using a CD-ROM, make sure the computer is turned on. Insert the system program update (flash) CD-ROM into the optical drive. The update begins. v If using a diskette, make sure the computer is turned off. Insert the system program update (flash) diskette and turn on the computer. The update begins. 2. When you are prompted to select a language, press the number on your keyboard that corresponds to the language and then press Enter. 3. When prompted to change the serial number, press Y. 4. Type the seven-character serial number of your computer and then press Enter. 5. When prompted to change the machine type/model, press Y. 6. Type the seven-character machine type/model of your computer and then press Enter. 7. Follow the instructions on the screen to complete the update. Recovering from a POST/BIOS update failure Attention If an interruption occurs during a POST/BIOS update (flash update), the computer might not restart correctly. If this occurs, perform the following procedure commonly called Boot-block Recovery. Note: If your computer has no internal diskette drive, an optional USB diskette drive must be connected to use the BIOS flash diskette. 1. Turn off the computer and any attached devices, such as printers, monitors, and external drives. 2. Unplug all power cords from electrical outlets, and open the computer cover. See "Opening the cover" on page 84. 3. Locate the Clear CMOS/Recovery jumper on the system board. See "System board locations" on page 83. 4. Remove any cables that impede access to the Clear CMOS/Recovery jumper. 5. Move the jumper from the standard position (pins 1 and 2) to pins 2 and 3. 6. Insert the POST/BIOS update (flash) diskette in the diskette drive. 7. Close the computer cover and reconnect any cables that were disconnected. 8. Reconnect the power cords for the computer and monitor to electrical outlets. 9. Turn on the computer and the monitor. 10. The recovery session will take two to three minutes. During this time, you will hear a series of beeps. After the update session is completed, the series of beeps ends. There will be no video, and the system will automatically turn off. 11. Open the computer cover, and move the Clear CMOS/Recovery jumper back to the original positions (pins 1 and 2). 12. Remove the POST/BIOS flash diskette from the diskette drive. 13. Close the computer cover and reconnect any cables that were disconnected. 14. Turn on the computer to restart the operating system. 162 Hardware Maintenance Manual

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Updating
(flashing)
BIOS
from
a
CD-ROM
or
diskette
This
section
describes
how
to
update
(flash)
the
BIOS
using
a
CD-ROM
or
diskette.
system
program
updates
are
available
at
on
the
World
Wide
Web.
1.
To
update
(flash)
the
BIOS:
v
If
using
a
CD-ROM,
make
sure
the
computer
is
turned
on.
Insert
the
system
program
update
(flash)
CD-ROM
into
the
optical
drive.
The
update
begins.
v
If
using
a
diskette,
make
sure
the
computer
is
turned
off.
Insert
the
system
program
update
(flash)
diskette
and
turn
on
the
computer.
The
update
begins.
2.
When
you
are
prompted
to
select
a
language,
press
the
number
on
your
keyboard
that
corresponds
to
the
language
and
then
press
Enter
.
3.
When
prompted
to
change
the
serial
number,
press
Y
.
4.
Type
the
seven-character
serial
number
of
your
computer
and
then
press
Enter
.
5.
When
prompted
to
change
the
machine
type/model,
press
Y
.
6.
Type
the
seven-character
machine
type/model
of
your
computer
and
then
press
Enter
.
7.
Follow
the
instructions
on
the
screen
to
complete
the
update.
Recovering
from
a
POST/BIOS
update
failure
Attention
If
an
interruption
occurs
during
a
POST/BIOS
update
(flash
update),
the
computer
might
not
restart
correctly.
If
this
occurs,
perform
the
following
procedure
commonly
called
Boot-block
Recovery.
Note:
If
your
computer
has
no
internal
diskette
drive,
an
optional
USB
diskette
drive
must
be
connected
to
use
the
BIOS
flash
diskette.
1.
Turn
off
the
computer
and
any
attached
devices,
such
as
printers,
monitors,
and
external
drives.
2.
Unplug
all
power
cords
from
electrical
outlets,
and
open
the
computer
cover.
See
“Opening
the
cover”
on
page
84.
3.
Locate
the
Clear
CMOS/Recovery
jumper
on
the
system
board.
See
“System
board
locations”
on
page
83.
4.
Remove
any
cables
that
impede
access
to
the
Clear
CMOS/Recovery
jumper.
5.
Move
the
jumper
from
the
standard
position
(pins
1
and
2)
to
pins
2
and
3.
6.
Insert
the
POST/BIOS
update
(flash)
diskette
in
the
diskette
drive.
7.
Close
the
computer
cover
and
reconnect
any
cables
that
were
disconnected.
8.
Reconnect
the
power
cords
for
the
computer
and
monitor
to
electrical
outlets.
9.
Turn
on
the
computer
and
the
monitor.
10.
The
recovery
session
will
take
two
to
three
minutes.
During
this
time,
you
will
hear
a
series
of
beeps.
After
the
update
session
is
completed,
the
series
of
beeps
ends.
There
will
be
no
video,
and
the
system
will
automatically
turn
off.
11.
Open
the
computer
cover,
and
move
the
Clear
CMOS/Recovery
jumper
back
to
the
original
positions
(pins
1
and
2).
12.
Remove
the
POST/BIOS
flash
diskette
from
the
diskette
drive.
13.
Close
the
computer
cover
and
reconnect
any
cables
that
were
disconnected.
14.
Turn
on
the
computer
to
restart
the
operating
system.
162
Hardware
Maintenance
Manual