Questions

How to reset lost passwords of laptop BIOS?

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0 Votes
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How to reset lost passwords of laptop BIOS?

Healer
One of my friends got an old laptop Dell Latitude D620 from one of her relatives. She has only the system password set in the BIOS Revision A08 in order to get to the user logon screen of the installed Windows XP Pro system.

Logging on to the laptop needs a system or administrator password before one can see the XP desktop user logon screen. The Administrator password of the installed Windows XP system dosen't work.

I found there are other security passwords in the BIOS: Unlock Setup, Admin Password, System Password, Internal HDD PW and so on. How can I clear or reset all these passwords while I know only the System Password. Certainly I have no problem changing the System Password.
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    1 Votes
    rlbullz

    - Unscrew the hard-case body of the laptop.
    - Go to the mother board.
    - Search for the switch that will reset the BIOS; or
    - Remove the internal battery.

    Flashing BIOS data differs between hardware. It is best that you seek for the laptop's hardware manual.

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    Healer

    Thank you I will search for the manual.

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    Healer

    I have found and downloaded the service manual which covers the following areas. However it is only talking about how to remove the system board but it does not have details of the components on the board. I was hoping it would tell me where the BIOS switch is. Perhaps I can visually look for the battery. Nevetheless it looks like a big job to get to the board. Wouldn't it be easy if it is located somewhere near the memory so that opening the RAM compartment, one can access it.
    1.Follow the instructions in Before Working Inside Your Computer.
    2.Remove the hinge cover (see Hinge Cover).
    3.Remove the keyboard (see Keyboard).
    4.Remove the display assembly (see Display Assembly).
    5.Remove the hard drive (see Hard Drive).
    6.Remove the optical drive (see Media Bay Devices).
    7.Remove the memory module (see Memory).
    8.Remove and installed wireless communications cards (see Communications Cards).
    9.Remove the palm rest (see Palm Rest).
    10.Remove the modem (see Modem).
    11.Remove the speaker (see Speaker).
    12.Remove the PC Card reader (see PC Card Reader).
    13,Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).
    14.Remove the processor (see Processor Module).
    15.Remove the microphone (see Microphone.)
    16.Disconnect the fan cable from the system board.
    17.Disconnect the cables near the WLAN card and the modem connector from the system board.
    18.Remove the three M2.5 x 5-mm system board screws from the bottom of the computer.

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    1 Votes
    PurpleSkys Moderator

    I would wipe and reload. Then it's a nice fresh install. She not likely needs to have all her relatives stuff that's on it.

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    Healer

    Fresh install of the operating system won't wipe the BIOS passwords.

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    databaseben

    fortunately, there are other methods to hack the system, than those provided in the posts above.


    unfortunately, cracking passwords is something no one here can / should help you with because there is no way for anyone here to know if you have a legitimate reason for accessing a secured system or you are trying to hack or steal the system.

    therefore, at best, you should send in the unit to dell.

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    Healer

    Thank you for your advice. I understand it.

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    1 Votes
    marogul

    1. BIOS paswords have nothing to do with Windows paswords
    2. Removing the battery helps on PC's but not on laptops (at least 98% won't work), also you will not find a BIOS reset switch on any laptop, especialy not on Dell ones. That would be a nonsence.
    3. There is plenty of tools to help you, just use your search engine properly.
    4. Good luck ;-)

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    0 Votes
    Healer

    I did Google for it before I posted this question. Most say to look for a switch or the BIOS battery.

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    1 Votes
    rlbullz

    - Unscrew the hard-case body of the laptop.
    - Go to the mother board.
    - Search for the switch that will reset the BIOS; or
    - Remove the internal battery.

    Flashing BIOS data differs between hardware. It is best that you seek for the laptop's hardware manual.

    +
    0 Votes
    Healer

    Thank you I will search for the manual.

    +
    0 Votes
    Healer

    I have found and downloaded the service manual which covers the following areas. However it is only talking about how to remove the system board but it does not have details of the components on the board. I was hoping it would tell me where the BIOS switch is. Perhaps I can visually look for the battery. Nevetheless it looks like a big job to get to the board. Wouldn't it be easy if it is located somewhere near the memory so that opening the RAM compartment, one can access it.
    1.Follow the instructions in Before Working Inside Your Computer.
    2.Remove the hinge cover (see Hinge Cover).
    3.Remove the keyboard (see Keyboard).
    4.Remove the display assembly (see Display Assembly).
    5.Remove the hard drive (see Hard Drive).
    6.Remove the optical drive (see Media Bay Devices).
    7.Remove the memory module (see Memory).
    8.Remove and installed wireless communications cards (see Communications Cards).
    9.Remove the palm rest (see Palm Rest).
    10.Remove the modem (see Modem).
    11.Remove the speaker (see Speaker).
    12.Remove the PC Card reader (see PC Card Reader).
    13,Remove the processor thermal-cooling assembly (see Processor Thermal-Cooling Assembly).
    14.Remove the processor (see Processor Module).
    15.Remove the microphone (see Microphone.)
    16.Disconnect the fan cable from the system board.
    17.Disconnect the cables near the WLAN card and the modem connector from the system board.
    18.Remove the three M2.5 x 5-mm system board screws from the bottom of the computer.

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    1 Votes
    PurpleSkys Moderator

    I would wipe and reload. Then it's a nice fresh install. She not likely needs to have all her relatives stuff that's on it.

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    0 Votes
    Healer

    Fresh install of the operating system won't wipe the BIOS passwords.

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    0 Votes
    databaseben

    fortunately, there are other methods to hack the system, than those provided in the posts above.


    unfortunately, cracking passwords is something no one here can / should help you with because there is no way for anyone here to know if you have a legitimate reason for accessing a secured system or you are trying to hack or steal the system.

    therefore, at best, you should send in the unit to dell.

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    0 Votes
    Healer

    Thank you for your advice. I understand it.

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    1 Votes
    marogul

    1. BIOS paswords have nothing to do with Windows paswords
    2. Removing the battery helps on PC's but not on laptops (at least 98% won't work), also you will not find a BIOS reset switch on any laptop, especialy not on Dell ones. That would be a nonsence.
    3. There is plenty of tools to help you, just use your search engine properly.
    4. Good luck ;-)

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    0 Votes
    Healer

    I did Google for it before I posted this question. Most say to look for a switch or the BIOS battery.