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How to bypass a password

Some one put a password on the bios on my laptop. how can i recover it

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You need to approach a laptop repair store or the manufacturer's service center. In case of laptop, to reset the bios password, there are more than one methods (depending upon make and model). Some require shorting specific two components on the motherboard, some require to replace and re program the BIOS IC etc. You may have to show the 'proof of ownership' in order to recover this password.

Posted on Dec 27, 2013

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Bought a laptop at auction but don't have password to open up


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  • Feb 11, 2016 | Gateway M320X Notebook

    Tip

    How to Bypass BIOS Passwords


    BIOS passwords can add an extra layer of security for desktop and laptop computers. They are used to either prevent a user from changing the BIOS settings or to prevent the PC from booting without a password. Unfortunately, BIOS passwords can also be a liability if a user forgets their password, or changes the password to intentionally lock out the corporate IT department. Sending the unit back to the manufacturer to have the BIOS reset can be expensive and is usually not covered in the warranty. Never fear, all is not lost. There are a few known backdoors and other tricks of the trade that can be used to bypass or reset the BIOS v Before attempting to bypass the BIOS password on a computer, please take a minute to contact the hardware manufacturer support staff directly and ask for their recommended methods of bypassing the BIOS security. In the event the manufacturer cannot (or will not) help you, there are a number of methods that can be used to bypass or reset the BIOS password yourself. They include:
    Using a manufacturers backdoor password to access the BIOS
    Use password cracking software
    Reset the CMOS using the jumpers or solder beads.
    Removing the CMOS battery for at least 10 minutes
    Overloading the keyboard buffer
    Using a professional service
    Please remember that most BIOS passwords do not protect the hard drive, so if you need to recover the data, simply remove the hard drive and install it in an identical system, or configure it as a slave drive in an existing system. The exception to this are laptops, especially IBM Thinkpads, which silently lock the hard drive if the supervisor password is enabled. If the supervisor password is reset without resetting the and hard drive as well, you will be unable to access the data on the drive.
    ----------------------------------------------------------------------------------------------------------- Backdoor passwords
    Many BIOS manufacturers have provided backdoor passwords that can be used to access the BIOS setup in the event you have lost your password. These passwords are case sensitive, so you may wish to try a variety of combinations. Keep in mind that the key associated to "_" in the US keyboard corresponds to "?" in some European keyboards. Laptops typically have better BIOS security than desktop systems, and we are not aware of any backdoor passwords that will work with name brand laptops.
    WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Read your manufacturers documentation for the BIOS setting before you begin typing in passwords
    Award BIOS backdoor passwords:
    ALFAROME ALLy aLLy aLLY ALLY aPAf _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 01322222 589589 589721 595595 598598
    AMI BIOS backdoor passwords:
    AMI AAAMMMIII BIOS PASSWORD HEWITT RAND AMI?SW AMI_SW LKWPETER A.M.I. CONDO
    PHOENIX BIOS backdoor passwords:
    phoenix, PHOENIX, CMOS, BIOS
    MISC. COMMON PASSWORDS
    ALFAROME BIOSTAR biostar biosstar CMOS cmos LKWPETER lkwpeter setup SETUP Syxz Wodj
    OTHER BIOS PASSWORDS BY MANUFACTURER
    Manufacturer Password VOBIS & IBM merlin Dell Dell Biostar Biostar Compaq Compaq Enox xo11nE Epox central Freetech Posterie IWill iwill Jetway spooml Packard Bell bell9 QDI QDI Siemens SKY_FOX TMC BIGO Toshiba Toshiba
    TOSHIBA BIOS
    Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot
    IBM APTIVA BIOS
    Press both mouse buttons repeatedly during the boot ---------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------
    P

    on Jun 25, 2010 | Computers & Internet

    Tip

    How to Reset a BIOS Password.


    Desktop Machines.

    In desktop machines its very simple.
    Just remove the BIOS Battery from the motherboard and place it back after 1mint.

    Laptop Machines.

    It is some what difficult in laptop machines. Because it is not an eassy job to remove BIOS battery from the mother board. So i'm just explaining some most commen methods.
    1. Using a Backdoor BIOS Password

    The backdoor password is a BIOS password that works, no matter what the user sets the BIOS password to. These passwords are typically used for testing and maintenance. Manufacturers typically change the backdoor BIOS passwords from time to time.

    AMI Backdoor BIOS Passwords Reported AMI backdoor BIOS passwords include A.M.I., AAAMMMIII, AMI?SW , AMI_SW, BIOS, CONDO, HEWITT RAND, LKWPETER, MI, and PASSWORD.
    Award Backdoor BIOS Passwords One reported Award backdoor BIOS password is eight spaces. Other reported Award backdoor BIOS passwords include 01322222, 589589, 589721, 595595, 598598 , ALFAROME, ALLY, ALLy, aLLY, aLLy, aPAf, award, AWARD PW, AWARD SW, AWARD?SW, AWARD_PW, AWARD_SW, AWKWARD, awkward, BIOSTAR, CONCAT, CONDO, Condo, condo, d8on, djonet, HLT, J256, J262, j262, j322, j332, J64, KDD, LKWPETER, Lkwpeter, PINT, pint, SER, SKY_FOX, SYXZ, syxz, TTPTHA, ZAAAADA, ZAAADA, ZBAAACA, and ZJAAADC.
    Phoenix Backdoor BIOS Passwords Reported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX.
    Backdoor BIOS Passwords from Other Manufacturers Reported BIOS backdoor passwords for other manufacturers include:
    Manufacturer BIOS Password VOBIS & IBM merlin Dell Dell Biostar Biostar Compaq Compaq Enox xo11nE Epox central Freetech Posterie IWill iwill Jetway spooml Packard Bell bell9 QDI QDI Siemens SKY_FOX SOYO SY_MB TMC BIGO Toshiba Toshiba Remember that what you see listed may not be the actual backdoor BIOS password, this BIOS password may simply have the same checksum as the real backdoor BIOS password. For Award BIOS, this checksum is stored at F000:EC60.

    2. Resetting the BIOS Password using Software :

    !BIOS will recover the BIOS password for most common BIOS versions, including IBM, American Megatrends Inc, Award and Phoenix.

    CmosPwd will recover the BIOS password for the following BIOS versions:
    • 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
    • Zenith AMI
    3. Resetting the BIOS Password using Hardware :

    If you cannot access the machine after if has been powered up, it is still possible to get past the BIOS password. The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.
    On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is. If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.
    If all else fails, you may have to clear the BIOS password by resetting the RTC (Real Time Clock) IC (Integrated Circuit) on your motherboard.
    Many RTC's require an external battery. If your RTC is one of this type, you can clear the BIOS password just by unsocketing the RTC and reseating it.

    4. Vendor Specific Solutions for Resetting the BIOS Password :
    Resetting a Dell BIOS Password For information on how to recover a Dell BIOS password, please refer to How do I reset Dell BIOS password?
    Resetting a Toshiba BIOS Password KeyDisk will reset the BIOS password on Toshiba laptops.

    Some Toshiba's can be convinced to bypass the startup BIOS password if you hold down the <LEFT-SHIFT> key while booting the system.
    Resetting an IBM ThinkPad BIOS Password For information on how to recover an IBM Thinkpad BIOS password, please refer to How do I reset an IBM ThinkPad BIOS password?
    Resetting an IBM Aptiva BIOS Password Some IBM Aptiva's can be convinced to bypass the startup BIOS password if you press both mouse buttons repeatedly while booting the system.
    Resetting an Acer BIOS Password For information on how to recover an Acer BIOS password, please refer to How do I reset an Acer BIOS password?


    Thanks & Regards
    Current009

    on Jun 01, 2010 | Computers & Internet

    1 Answer

    Blue box password


    Hello,
    I am assuming you are talking about the BIOS password which you must enter before the laptop even boots. One way to get past the password is to reset your CMOS battery by taking it out and then wait 10-25 seconds before putting it back in. After it is back in, plug the laptop back in and power up the computer. This should bypass the password. If this fails you can try removing the password using software which you can find here:
    http://www.technibble.com/how-to-bypass-or-remove-a-bios-password/

    Nov 05, 2013 | Dell Inspiron Mini 10 Notebook

    1 Answer

    Can you find bios password in recovery disks


    No. The BIOS password is established in the BIOS only. The OS has not even begun to load at the time the BIOS password is required, In desktops PCs the BIOS password can be circumvented by using the BIOS jumper to reset the BIOS, but laptops are not so forgiving. Manufacturers made it difficult to bypass the passwords to discourage theft. Users are well advised to write down their laptop passwords and put them in a safe place away from the machine in case such situations arise.

    Jan 23, 2012 | Acer Computers & Internet

    1 Answer

    How can i recover hp 4420s bios password?


    How to Bypass or Remove aBIOS Password
    NOTE: Do not try to guess the password on a passworded Hard Drive. 3 wrongguesses will often result in the information on the hard drive being lostforever. How to Bypass or Remove a BIOS Password by Removing theCMOS Battery:
    The simplest way to remove a BIOS password is to simply remove the CMOSbattery. A computer will remember its settings and keep the time even when itis turned off and unplugged because these parts are powered by small batteryinside the computer called a CMOS battery. If we pull out this battery, thecomputer will forget a lot of its hardware settings, including its BIOSpassword. This should not be performed on Laptops if you are not experiencedworking with laptop hardware. Anyway, open up thecomputer case using a screw driver and locate the flat, circular and metallicCMOS battery. Some computers have this part standing upright. Once you have located it,observe how the latches are holding it. There are many different ways to removea CMOS battery. Make sure to power down thecomputer, unplug the power cables and unplug any USB devices if they arepowered. The computer must not be able to get power from anywhere for this towork. Take out the CMOS battery and wait 10 - 25 minutes before putting it backin. The reason for this wait is because the computer can still store power inits capacitors even though everything is unplugged. The waiting period allowsenough time for them to discharge. Plug everything back in,power up the computer and enter the BIOS again. If everything went well thereshould be no more password. In some cases, if you get weird error messagesduring bootup now, you will need to go to "Load BIOS Defaults" in BIOS and savethe changes to fix them.

    Sep 17, 2011 | Computers & Internet

    6 Answers

    DELL XPS M140 MXC051 LAPTOP BIOS PASSWORD


    Most laptop or notebook computers feature enhanced BIOS security, and BIOS passwords on laptops are hard to bypass. Several companies offer laptop security chip services that can be used to bypass the BIOS password on Dell laptops or notebooks and reset the security. They can provide a master password from the Dell Service Tag of your Dell laptop. This master password will allow you to bypass the existing password and enter the BIOS and reset the unknown password. To generate the master password they need to know the Dell Service Tag of your unit. Dell Master Password Recovery does not require soldering or disassembly of the laptop and supports most Dell models.

    Dell BIOS passwords can also be reset by replacing the laptop security chip. Passwords can also be recovered from security chips that have been removed from laptop or notebook systems. These passwords may be required to attempt to unlock protected hard disks. Passwords recovered from these chips are the original BIOS passwords and may be the same as the hard disk password, but are not guaranteed to be the same and may not unlock the hard disk.These are usually damaged in the process of recovering the passwords and are not suitable for replacement into a computer.

    Apr 08, 2010 | Dell Inspiron XPS M140 Notebook

    1 Answer

    Lost password in Dell C640 laptop


    It ian't a big deal, one phone call to Dell Technical support 800-624-9896 Verify that you are an authorized user of the system, and they will generate a master password for the system. (If out of warranty, there may be a support fee)

    Jun 06, 2009 | Dell Latitude C640 Notebook

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