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  1. #1
    New Lounger
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    Angry cmos password removal

    My Dell Latitude laptop has a cmos password set by the factory. At startup, before the bios is loaded, I get an error message (BP9Y121-595B) . Can someone please advise me how to remove this password??
    Thank you in advance.

  2. #2
    Super Moderator jwitalka's Avatar
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    Contact Dell support.

    Jerry

  3. #3
    Super Moderator CLiNT's Avatar
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    Possible solution: Lost password - Resetting the BIOS, or this.
    DRIVE IMAGING
    Invest a little time and energy in a well thought out BACKUP regimen and you will have minimal down time, and headache.

    Windows 8.1, 64 bit
    Motherboard: DX58SO2*Chipset: X58 Express/Intel ICH10*BIOS: SOX5820J.86A.0888.2012.0129.2203*Processor: Intel Core i7 CPU X 990
    GPU: Nvidia GTX 580*Memory: Corsair 12 GB, 4x3@1600*PSU: Corsair HX1000*Hard drives: REVO X2 160GB*OCZ VERT X3 120GB*5 mechanical storage drives (12 TB) total.

  4. #4
    2 Star Lounger
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    That code indicates you've got a Latitude C640 with a 595B bios, so try the solution at http://www.techadepts.com/?p=385. It's been a few years, but I have successfully used that to recover old Latitude bios passwords before.

    (Tip: Normally I wouldn't recommend downloading exes from unfamiliar sites, but if you're not into compiling the C code yourself you can scroll to the bottom of the code and there's a Windows binary you can download. This one seems to be okay but as usual in these kinds of things, caveat emptor.)

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