Lenovo Notebook Computer User Guide
65
z
See
if
the
battery
interface
is
damaged.
z
Protect
the
battery
according
to
the
previous
chapters.
z
Battery
life
will
shorted
over
time
after
charging
and
discharging.
It’s
a
normal
phenomenon.
z
If
problems
still
exist,
contact
a
Lenovo
licensed
service
agency.
4.2.9
LCD
is
black
z
See
if
your
computer
is
in
Hibernation
mode.
z
See
if
you
have
made
the
following
configuration
for
Power
Management:
“shut
down
LCD
screen
after
some
time”.
z
See
if
your
computer
is
connected
to
any
external
display
device
and
you
have
switched
to
it.
4.3 Service support system
Except
the
maintenance
and
troubleshooting
actions
we
recommend,
we
strongly
recommend:
Do
not
disassemble
your
computer;
do
not
maintain,
repair
or
restructure
the
computer
by
yourself
or
by
agencies
that
are
not
licensed
by
Lenovo.
Contact
Lenovo
licensed
service
agencies
for
maintenance
and
repair
services.
You
can
get
free
or
charging
services
on
the
basis
of
Lennon’s
service
policies.
You
also
can
contact
service
support
systems
of
Lenovo
to
get
more
service
information.
4.3.1
Warranty
service
telephone
numbers
The
phone
numbers
provided
later
in
this
section
are
correct
at
time
of
printing
and
are
subject
to
change
without
notice.
For
the
latest
warranty
service
contact
telephone
number
in
a
country,
contact