Lenovo Notebook Computer User Guide
63
4.2.5
A
peripheral
device
or
an
electronic
device
can
not
work
when
it
is
connected
to
the
computer.
z
See
if
the
cable
between
the
device
and
the
computer
is
well
connected.
z
See
if
the
device
is
turned
on
and
in
a
normal
working
status.
z
Read
the
user
guide
of
the
device
and
configure
it
and
your
computer
in
compliance
with
the
requirements
in
the
guide.
z
See
if
the
computer
port
connected
with
the
electronic
device
is
disabled
in
BIOS.
z
See
if
the
port
configuration
and
electric
standard
meets
the
requirements
of
the
device
or
is
compatible
with
it.
z
See
if
the
device
can
work
normally
when
it
is
connected
with
other
portable
computers.
z
See
if
the
device
of
other
model
can
work
normally
when
it
is
connected
with
you
portable
computer.
If
the
methods
above
mentioned
do
not
work,
contact
Lenovo
licensed
service
agencies.
4.2.6
You
can
not
dial
‐
up
with
the
computer.
z
See
if
the
telephone
line
is
well
connected
to
the
Modem
port
on
the
computer.
z
See
if
you
have
hung
up
your
telephone
and
extensions.
z
If
you
are
using
ISDN,
see
if
the
ISDN
devices
are
working
well.
z
See
if
your
telephone
line
is
working
well
and
can
dial
an
outside
number.
z
If
you
are
using
an
extension
line
in
a
hotel
or
other
places,
see
if
it
supports
dial
‐
up
Internet
access
service.
