Lenovo G710 User Guide - Lenovo G700, G710 (Windows 8.1 Preloaded) - Page 28

Troubleshooting, Troubleshooting, Display problems, BIOS password problems - + replacement keys

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Chapter 4. Troubleshooting Troubleshooting Display problems When I turn on the computer,  • If the screen is blank, make sure that: nothing appears on the screen. - The battery pack is installed correctly. - The AC power adapter is connected to the computer, and the power cord is plugged into a working electrical outlet. - The computer power is on. (Press the Power button again for confirmation.) - The memory is installed correctly. • If these items are properly set, and the screen remains blank, have the computer serviced. When I turn on the computer, • only a white cursor appears on a blank screen. The screen goes blank while • the computer is on. BIOS password problems Restore backed-up files to your Windows environment or the entire contents of your hard disk to its original factory contents using the Lenovo OneKey Recovery System. If you still see only the cursor on the screen, have the computer serviced. Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep mode: - Touch the touch pad. - Press any key on the keyboard. - Press the Power button. - Press F9( ) to confirm whether the backlight of the LCD screen has been turned off. I forgot my password. • If you forget your user password, ask the system administrator to clear your user password. • If you forget your hard disk drive password, a Lenovo authorized servicer cannot reset your password or recover data from the hard disk. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the hard disk drive replaced. Proof of purchase is required, and a fee will be charged for parts and service. • If you forget your supervisor password, a Lenovo authorized servicer cannot reset your password. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the system board replaced. Proof of purchase is required, and a fee will be charged for parts and service. 24

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24
Chapter 4. Troubleshooting
Troubleshooting
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Display problems
When I turn on the computer,
nothing appears on the screen.
•
If
t
he screen
i
s blank, make s
u
re
t
ha
t
:
-
The ba
tt
ery pack
i
s
i
ns
t
alled correc
t
ly.
-
The AC power adap
t
er
i
s connec
t
ed
t
o
t
he comp
ut
er, and
t
he power cord
i
s pl
ugg
ed
i
n
t
o a work
i
n
g
elec
t
r
i
cal o
ut
le
t
.
-
The comp
ut
er power
i
s on. (Press
t
he
Power button
a
g
a
i
n
for conf
i
rma
ti
on.)
-
The memory
i
s
i
ns
t
alled correc
t
ly.
•
If
t
hese
it
ems are properly se
t
, and
t
he screen rema
i
ns blank,
ha
v
e
t
he comp
ut
er ser
vi
ced.
When I turn on the computer,
only a white cursor appears on
a blank screen.
•
Res
t
ore backed-
u
p f
i
les
t
o yo
u
r W
i
ndows en
vi
ronmen
t
or
t
he en
ti
re con
t
en
t
s of yo
u
r hard d
i
sk
t
o
it
s or
igi
nal fac
t
ory
con
t
en
t
s
u
s
i
n
g
t
he Leno
v
o OneKey Reco
v
ery
S
ys
t
em. If yo
u
s
ti
ll see only
t
he c
u
rsor on
t
he screen, ha
v
e
t
he comp
ut
er
ser
vi
ced.
The screen goes blank while
the computer is on.
•
Yo
u
r screen sa
v
er or power mana
g
emen
t
may be enabled.
Do one of
t
he follow
i
n
g
t
o ex
it
from
t
he screen sa
v
er or
t
o
res
u
me from sleep mode:
- To
u
ch
t
he
t
o
u
ch pad.
-
Press any key on
t
he keyboard.
- Press
t
he Power b
utt
on.
- Press
F9(
)
t
o conf
i
rm whe
t
her
t
he backl
ig
h
t
of
t
he
LCD screen has been
tu
rned off.
BIOS password problems
I forgot my password.
•
If yo
u
for
g
e
t
yo
u
r
u
ser password, ask
t
he sys
t
em
adm
i
n
i
s
t
ra
t
or
t
o clear yo
u
r
u
ser password.
•
If yo
u
for
g
e
t
yo
u
r hard d
i
sk dr
iv
e password, a Leno
v
o
a
ut
hor
i
zed ser
vi
cer canno
t
rese
t
yo
u
r password or reco
v
er
da
t
a from
t
he hard d
i
sk. Yo
u
m
u
s
t
t
ake yo
u
r comp
ut
er
t
o a
Leno
v
o a
ut
hor
i
zed ser
vi
cer or a marke
ti
n
g
represen
t
a
tiv
e
t
o
ha
v
e
t
he hard d
i
sk dr
iv
e replaced. Proof of p
u
rchase
i
s
req
ui
red, and a fee w
i
ll be char
g
ed for par
t
s and ser
vi
ce.
•
If yo
u
for
g
e
t
yo
u
r s
u
per
vi
sor password, a Leno
v
o
a
ut
hor
i
zed ser
vi
cer canno
t
rese
t
yo
u
r password. Yo
u
m
u
s
t
t
ake yo
u
r comp
ut
er
t
o a Leno
v
o a
ut
hor
i
zed ser
vi
cer or a
marke
ti
n
g
represen
t
a
tiv
e
t
o ha
v
e
t
he sys
t
em board
replaced. Proof of p
u
rchase
i
s req
ui
red, and a fee w
i
ll be
char
g
ed for par
t
s and ser
vi
ce.