Lenovo S200 Hardware Maintenance Manual - Page 250

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 diskette or CD-ROM. System program updates are available at http://www.lenovo.com/support on the World Wide Web. 1. To update (flash) the BIOS: v From a CD-ROM, make sure the computer is turned on. Insert the CD-ROM into the optical drive. The update begins. v From a diskette, make sure the computer is turned off and insert a system program update (flash diskette). Then turn the computer on. 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 in 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 in 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 (also known as a 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 the computer off and insert the BIOS flash diskette in the diskette drive. 2. Turn the computer on and immediately during startup, press the Ctrl and Home keys (Ctrl + Home) at the same time. 3. The computer will automatically begin recovering the BIOS. During this time you will see a screen indicating that Flash recovery has started. After the update session completes, the computer automatically reboots. 4. Remove the BIOS flash diskette from the diskette drive. 244 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
diskette
or
CD-ROM.
System
program
updates
are
available
at
on
the
World
Wide
Web.
1.
To
update
(flash)
the
BIOS:
v
From
a
CD-ROM,
make
sure
the
computer
is
turned
on.
Insert
the
CD-ROM
into
the
optical
drive.
The
update
begins.
v
From
a
diskette,
make
sure
the
computer
is
turned
off
and
insert
a
system
program
update
(flash
diskette).
Then
turn
the
computer
on.
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
in
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
in
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
(also
known
as
a
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
the
computer
off
and
insert
the
BIOS
flash
diskette
in
the
diskette
drive.
2.
Turn
the
computer
on
and
immediately
during
startup,
press
the
Ctrl
and
Home
keys
(Ctrl
+
Home)
at
the
same
time.
3.
The
computer
will
automatically
begin
recovering
the
BIOS.
During
this
time
you
will
see
a
screen
indicating
that
Flash
recovery
has
started.
After
the
update
session
completes,
the
computer
automatically
reboots.
4.
Remove
the
BIOS
flash
diskette
from
the
diskette
drive.
244
Hardware
Maintenance
Manual