Recovering from a post/bios update failure, Recovering, From – Lenovo THINKCENTRE 8177 User Manual
Page 221: Post/bios, Update, Failure
5.
On
the
Flash
BIOS
Update
page,
scroll
down
to
locate
the
.txt
file
for
the
flash
from
the
operating
system
version.
Click
the
.txt
file.
6.
these
instructions.
This
is
very
important
because
these
instructions
are
not
on
the
screen
after
the
download
begins.
7.
From
the
browser,
click
Back
to
return
to
the
list
of
files.
Carefully
follow
the
printed
instructions
to
download,
extract,
and
install
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.
Open
the
cover.
2.
Remove
any
parts
necessary
to
gain
access
to
the
Clear
CMOS/Recovery
jumper.
3.
Move
the
Clear
CMOS/Recovery
jumper
from
the
standard
position
(pins
1
and
2)
to
pins
2
and
3.
4.
Insert
the
BIOS
flash
diskette
in
the
diskette
drive.
5.
Close
the
cover
and
reconnect
the
computer
power
cord
to
the
computer
and
to
an
electrical
outlet.
Turn
on
the
computer.
6.
The
recovery
session
takes
two
to
three
minutes.
During
this
time
you
will
hear
a
series
of
beeps.
After
the
update
session
completes,
the
series
of
beeps
ends
and
the
computer
automatically
turns
off.
There
is
no
video
during
the
recovery
session.
7.
When
the
computer
turns
off,
open
the
cover.
8.
Move
the
Clear
CMOS/Recovery
jumper
back
to
the
original
position
(pins
1
and
2).
9.
Remove
the
BIOS
flash
diskette
from
the
diskette
drive.
10.
Close
or
install
the
cover
and
reconnect
all
external
cables.
Chapter
12.
Additional
Service
Information
215