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  • How to Reset BIOS/CMOS Password

    July 7th, 2008 ~ 5 Comments


    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 Cleaner

    source: raymond.cc

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    Tags: Operating System

    5 responses so far

    • 1 mark ~ Oct 19, 2009 at 2:42 pm

      A. 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.

      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.

      B. By Using Software:

      I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
      BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds

      BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

    • 2 Mais ~ Feb 2, 2010 at 10:16 am

      i can not reset passwod bios. notebook acer 5738z. hepl pleace.

    • 3 Jason Smith ~ Sep 24, 2010 at 7:47 am

      You can go to http://www.mastermindit.biz to get your master password that will reset all bios passwords and unlock your computer. They do many model including Dell, HP/COMPAQ, Acer, Sony, Samsung and Fujitsu-Siemens.

    • 4 jamie ~ May 19, 2011 at 2:57 pm

      if this works i will be in heaven… my comp lap is currupt and has been for years, nothing i do will change remote controlled…
      errors , denied access etc.. ive had enough.. if this works , my stress levels will be normal

    • 5 Y8 ~ Aug 11, 2011 at 11:41 am

      In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.

      Thanks for sharing.

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