** How to Reset/Remove/Bypass a BIOS or CMOS Passw by ROCKY13 2010/02/01 18:22
DISCLAIMER: This
information is intended
for experienced users. It is
not intended for basic
users, hackers, or
computer thieves. Please
do not try any of
following procedures if
you are not familiar with
computer hardware. I'll
not be responsible for the
use or misuse of this
information, including
personal injury, loss of
data or hardware damage.
So use it at your own risk.
DISCLAIMER: This
information is intended
for experienced users. It is
not intended for basic
users, hackers, or
computer thieves. Please
do not try any of
following procedures if
you are not familiar with
computer hardware. I'll
not be responsible for the
use or misuse of this
information, including
personal injury, loss of
data or hardware damage.
So use it at your own risk.
ROCKY13 2010/02/01 18:23
BIOS passwords are used
to add some extra security
to computers. You can
either set a password to
prevent access to BIOS
settings or to prevent PC
from booting.
But sometimes this extra
security might become a
pain when you forget the
BIOS password or
someone changes your
system BIOS password
intentionally.
But there is no need to
worry. There are many
known ways to reset /
remove / bypass the
password:
By removing the CMOS
battery
By using the
motherboard jumper
By using MS DOS
command
By using software
By using Backdoor BIOS
password
BIOS passwords are used
to add some extra security
to computers. You can
either set a password to
prevent access to BIOS
settings or to prevent PC
from booting.
But sometimes this extra
security might become a
pain when you forget the
BIOS password or
someone changes your
system BIOS password
intentionally.
But there is no need to
worry. There are many
known ways to reset /
remove / bypass the
password:
By removing the CMOS
battery
By using the
motherboard jumper
By using MS DOS
command
By using software
By using Backdoor BIOS
password
ROCKY13 2010/02/01 18:24
Now I'll try to explain
each method one by one:
A. By Removing the
CMOS Battery:
Almost all motherboards
use a small coin sized
CMOS battery to store all
BIOS settings along with
the password. To reset
the password, unplug the
PC, open the cabinet and
remove the CMOS battery
for approx. 15-30 minutes
and then put it back. It'll
reset all BIOS settings as
well as the password and
you'll need to re-enter all
settings.
If it fails, then try to
remove the battery for at
least one hour.
Now I'll try to explain
each method one by one:
A. By Removing the
CMOS Battery:
Almost all motherboards
use a small coin sized
CMOS battery to store all
BIOS settings along with
the password. To reset
the password, unplug the
PC, open the cabinet and
remove the CMOS battery
for approx. 15-30 minutes
and then put it back. It'll
reset all BIOS settings as
well as the password and
you'll need to re-enter all
settings.
If it fails, then try to
remove the battery for at
least one hour.
ROCKY13 2010/02/01 18:25
B. By Using the
Motherboard Jumper:
In most motherboards
CMOS battery is soldered,
which makes it difficult to
remove the battery. In this
case we use another
method.
Almost all motherboards
contain a jumper that can
clear all CMOS settings
along with the BIOS
password. The location of
this jumper varies
depending upon the
motherboard brand. You
should read your
motherboard manual to
check its location. If you
don't have the manual
then look for the jumpers
near the CMOS battery.
Most of the manufacturer
label the jumper as CLR,
CLEAR, CLEAR CMOS, etc.
B. By Using the
Motherboard Jumper:
In most motherboards
CMOS battery is soldered,
which makes it difficult to
remove the battery. In this
case we use another
method.
Almost all motherboards
contain a jumper that can
clear all CMOS settings
along with the BIOS
password. The location of
this jumper varies
depending upon the
motherboard brand. You
should read your
motherboard manual to
check its location. If you
don't have the manual
then look for the jumpers
near the CMOS battery.
Most of the manufacturer
label the jumper as CLR,
CLEAR, CLEAR CMOS, etc.
ROCKY13 2010/02/01 18:25
When you find the
jumper, look carefully.
There will be 3 pins and
the jumper will be joining
the center pin to either
left or right pin. What you
need to do, is remove the
jumper and join the center
pin to the opposite pin.
e.g. if the jumper joins
center pin to left pin, then
remove it and join center
pin to right pin. Now wait
for a few seconds and
then again remove the
jumper and join the center
pin to left pin.
Make sure to turn the PC
off before opening the
cabinet and resetting the
jumper.
When you find the
jumper, look carefully.
There will be 3 pins and
the jumper will be joining
the center pin to either
left or right pin. What you
need to do, is remove the
jumper and join the center
pin to the opposite pin.
e.g. if the jumper joins
center pin to left pin, then
remove it and join center
pin to right pin. Now wait
for a few seconds and
then again remove the
jumper and join the center
pin to left pin.
Make sure to turn the PC
off before opening the
cabinet and resetting the
jumper.
ROCKY13 2010/02/01 18:27
C. By Using MS DOS
Command:
This method works only if
you have access to the
system when its turned on
because this method
requires MS DOS. Open
MS DOS from programs
menu and provide
following commands one
bye one:
debug
o 70 2E
o 71 FF
quit
NOTE: The first character
in the above commands is
" O" and not the number
0.
C. By Using MS DOS
Command:
This method works only if
you have access to the
system when its turned on
because this method
requires MS DOS. Open
MS DOS from programs
menu and provide
following commands one
bye one:
debug
o 70 2E
o 71 FF
quit
NOTE: The first character
in the above commands is
" O" and not the number
0.
ROCKY13 2010/02/01 18:27
After providing the above
commands, restart your
system and it should reset
the CMOS Settings along
with the BIOS password.
If you are curious to know
how it works? then let me
explain the above
commands:
In this method we are
using the Debug tool of
MS DOS. The " O"
character present at first
in these commands,
outputs the values to IO
ports. The number 70 and
71 are port numbers
which are used to access
CMOS memory. By
providing FF value we are
telling CMOS that there is
an invalid checksum and it
resets the CMOS settings
as well as BIOS password.
After providing the above
commands, restart your
system and it should reset
the CMOS Settings along
with the BIOS password.
If you are curious to know
how it works? then let me
explain the above
commands:
In this method we are
using the Debug tool of
MS DOS. The " O"
character present at first
in these commands,
outputs the values to IO
ports. The number 70 and
71 are port numbers
which are used to access
CMOS memory. By
providing FF value we are
telling CMOS that there is
an invalid checksum and it
resets the CMOS settings
as well as BIOS password.
ROCKY13 2010/02/01 18:28
D. By Using Software:
There are a few software
which can also reset
CMOS settings or BIOS
password or both within a
few clicks. But as stated
above you should have
access to a system which
is turned on and should
have access to MS DOS or
MS Windows:
KillCMOS
!BIOS
CmosPwd
D. By Using Software:
There are a few software
which can also reset
CMOS settings or BIOS
password or both within a
few clicks. But as stated
above you should have
access to a system which
is turned on and should
have access to MS DOS or
MS Windows:
KillCMOS
!BIOS
CmosPwd
ROCKY13 2010/02/01 18:29
E. By Using Backdoor
BIOS Password:
Some BIOS manufacturer
put a backdoor password
in BIOS which always
works irrespective of what
password you have set in
BIOS. Its a master
password which is used
for testing and
troubleshooting purposes.
E. By Using Backdoor
BIOS Password:
Some BIOS manufacturer
put a backdoor password
in BIOS which always
works irrespective of what
password you have set in
BIOS. Its a master
password which is used
for testing and
troubleshooting purposes.
ROCKY13 2010/02/01 18:29
AMI BIOS Passwords:
A.M.I.
AAAMMMIII
AMI?SW
AMI_SW
AMI
BIOS
CONDO
HEWITT RAND
LKWPETER
MI
Oder
PASSWORD
AMI BIOS Passwords:
A.M.I.
AAAMMMIII
AMI?SW
AMI_SW
AMI
BIOS
CONDO
HEWITT RAND
LKWPETER
MI
Oder
PASSWORD
ROCKY13 2010/02/01 18:30
AWARD BIOS Passwords:
01322222
589589
589721
595595
598598
ALFAROME
ALLy
aLLy
aLLY
ALLY
aPAf
_award
award
AWARD_SW
AWARD?SW
AWARD SW
AWARD PW
AWKWARD
awkward
BIOSTAR
CONCAT
CONDO
Condo
d8on
djonet
HLT
J64
J256
J262
j332
j322
KDD
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
shift + syxz
TTPTHA
ZAAADA
ZBAAACA
ZJAAADC
AWARD BIOS Passwords:
01322222
589589
589721
595595
598598
ALFAROME
ALLy
aLLy
aLLY
ALLY
aPAf
_award
award
AWARD_SW
AWARD?SW
AWARD SW
AWARD PW
AWKWARD
awkward
BIOSTAR
CONCAT
CONDO
Condo
d8on
djonet
HLT
J64
J256
J262
j332
j322
KDD
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
shift + syxz
TTPTHA
ZAAADA
ZBAAACA
ZJAAADC
ROCKY13 2010/02/01 18:31
Misc Common
Passwords:
ALFAROME
BIOSTAR
biostar
biosstar
CMOS
cmos
LKWPETER
lkwpeter
setup
SETUP
Syxz
Wodj
Misc Common
Passwords:
ALFAROME
BIOSTAR
biostar
biosstar
CMOS
cmos
LKWPETER
lkwpeter
setup
SETUP
Syxz
Wodj
ROCKY13 2010/02/01 18:31
Other Manufacturer
BIOS Passwords:
Biostar - Biostar
Compaq - Compaq
Dell - Dell
Enox - xo11nE
Epox - central
Freetech - Posterie
IWill - iwill
Jetway - spooml
Packard Bell - bell9
QDI - QDI
Siemens - SKY_FOX
TMC - BIGO
Toshiba - Toshiba
VOBIS & IBM - merlin
NOTE: All these
passwords are case-
sensitive and are changed
from time to time by
manufacturers.
Other Manufacturer
BIOS Passwords:
Biostar - Biostar
Compaq - Compaq
Dell - Dell
Enox - xo11nE
Epox - central
Freetech - Posterie
IWill - iwill
Jetway - spooml
Packard Bell - bell9
QDI - QDI
Siemens - SKY_FOX
TMC - BIGO
Toshiba - Toshiba
VOBIS & IBM - merlin
NOTE: All these
passwords are case-
sensitive and are changed
from time to time by
manufacturers.
for sharing, never knew there is other way
Password 2010/02/02 01:41
Not a good ide to tell people to work with byos... better NOT TO TOUCH IT!! but its up to u if u flash ur own byos lol
Not a good ide to tell people to work with byos... better NOT TO TOUCH IT!! but its up to u if u flash ur own byos lol
Kill-a-F 2010/02/02 13:54
this answered my question in your previous topic about hacking password of any Operating System..
this answered my question in your previous topic about hacking password of any Operating System..
Core_Condor 2010/02/02 14:03
Quote: Kill-a-F: this answered my question in your previous topic about hacking password of any Operating System..
its nt 4 OS pwd hacking. . . . . . .
Replies: 25
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