How To Reset, Remove, Clear or Reveal CMOS BIOS Security Password
section: common, for your questions: KezNews forum, 6.7.2008
There are times that we need to reset the computer’s BIOS security password. Yesterday I was at the local government technical school facility and the person who is in charge of the computer told me that they are not able to reinstall Windows because they are not able to get in the BIOS to set the boot order as it is password protected. The lecturers do not know the password as it is not set by them, but by some unknown student.
The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.
If for some reason you’re unable to reset the computer’s BIOS or CMOS security password by removing the battery or clearing the CMOS jumper (using a laptop), here are few tools which you can try to use it to clear the BIOS password.
AMI Backdoor or Default BIOS Passwords
A.M.I.
AAMMMIII
AMI
AMI SW
AMI?SW
AMI_SW
BIOS
CONDO
HEWITT RAND
LKWPETER
MI
Oder
PASSWORD
Award Backdoor or Default BIOS Passwords
589589
589721
595595
598598
1322222
_award
ALFAROME
ALLY
ALLy
aLLy
aLLY
aPAf
award
AWARD PW
AWARD SW
Award SW
AWARD?SW
AWARD?SW
AWARD_PW
AWARD_SW
awkward
AWKWARD
BIOSTAR
CONCAT
condo
Condo
CONDO
d8on
djonet
HLT
HLT
J256
j256
J262
j262
j322
j332
J332
J64
j64
KDD
KDD
lkwpeter
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
szyx
TTPTHA
ZAAAADA
ZAAADA
ZAAADA
ZBAAACA
ZBAAACA
ZJAAADC
ZJAAADC
Phoenix Backdoor or Default BIOS Passwords
This is probably the most up to date and popular CMOS decryption tool. CmosPwd decrypts password stored in cmos used to access BIOS SETUP. It works with the following BIOSes: ACER/IBM BIOS, AMI BIOS, AMI WinBIOS 2.5, Award 4.5x/4.6x/6.0, Compaq (1992), Compaq (New version), IBM (PS/2, Activa, Thinkpad), Packard Bell, Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107, Phoenix 4 release 6 (User), Gateway Solo - Phoenix 4.0 release 6, Toshiba and Zenith AMI. With CmosPwd, you can also backup, restore and erase/kill cmos. You will have to logged in as administrator, run ioperm -i command and then run cmospwd_win.exe
Download:
Download CmosPwd 5.0
!Bios by eleventh alliance
!Bios is a tool originally developed for a brute, blunt removal of passwords from BIOSes. Through its development it has been severely extended. !Bios can decrypt the passwords used in some most common BIOS (including various bioses/versions by IBM, American Megatrends Inc, Award and Phoenix). !Bios can do crude, brutal attacks (blasters) which removes password from a lot of Bioses. A bit dangerous though, can give unexpected and unwanted results.
Download:
Download !Bios
PC CMOS Cleaner
PC CMOS Cleaner is an easy-to-use tool to recover, delete, decode and display the superior passwords stored in BIOS whatever the brand is. Most types of BIOS such as AWARD, AMI, Compaq, Phoenix, Samsung, IBM, Compaq, DTK, Thinkpad, Sony, Toshiba are supported. It’s an bootable CD that runs on x86 and x86_64 computers. It can display the superior passwords of the BIOS, remove BIOS password(will set the BIOS to default status, need reset date).
Download:
Download PC CMOS Cleanersource:
raymond.cc
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Comments(7)
finally a useful article on keznews ( not written by monkeys)
why not just remove the battery, wait five minutes, then put the battery back it and
viola.....password reset. friggin morons!
sometimes is not so simple. at home you can remove the battery or use the cmos reset
jumper.
but at office... what about your work mates who can ask: "what you
want to do whit that screwdriver..." :-)))
if you think these things will work on laptops, think again. they don't have backdoors,
and usually have to have a new bios chip installed or sent back to the manufacturer. some
do have a unique password, but good luck getting it from the manufacturer.
these password list s are from faqs that were created in the late 90s...
great
if your still running p3s etc..
surprised "ye olde" rs232/parallel loopback
cables aren't metioned - pinouts readily available for lots.
rizz takes great pains to point out the battery removal technique, then calling the
writer of the article 'morons'. surely only a 'moron' would post a comment like that
without noticing the article already describes removing the battery. oops ...
on another note, the backdoor password lists invariably don't work, as mentioned already.
if it's a notebook you're after the password for, you've probably had it. many of them
store the password in a separate chip, which can't be just erased. if you do manage to
find a battery in these and remove it, you'll probably end up with a machine that asks
the password on startup, before booting.
most notebooks and desktops now have a win flash update. i have found 99% of systems,
when you winflash them, clear the cmos data including the password. try it!
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so its true
By so its true on 07.07.2008 - 02:07