Dell T7820 stuck in Bios Recovery Mode

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  • The_Memory_Guy
    New Member
    • Jul 2025
    • 2
    • United Kingdom
    #1

    Dell T7820 stuck in Bios Recovery Mode

    Click image for larger version Name: file options.png Views: 97 Size: 54.3 KB ID: 3676885 HI,

    I have a Dell T7820 stuck in Bios recovery mode. I never get Dell Boot screen or anything visible on screen. The system just gives me 3 white lights and 3 orange lights indicating Bios recovery mode.

    What I have tried to get to recover the Bios, there seems to be some conflicting advice about recovering the system.

    All of them say to download the latest bios from the dell website which is a .exe file. I have done that

    https://www.dell.com/support/product...BUT090/drivers

    Some say to go to command prompt, find the location of the file and run filename.exe /writehdrfile

    Whenever I do this I get an error, picture attached pressing /? show the commands available.

    Other have said rename the .exe file BIOS_IMG.rcv and copy onto USB drive that has been formatted in FAT32 mode.

    I am holding down CTRL+ESC, then inserting power, letting go when the keyboard turns on, however I get nothing, just the same. 3 white, 3 orange. Never a screen.

    I am doing something wrong, to I need to get this elusive hdr file? do I need a wired PS/2 keybard?

    I have some more of these machines, potentially we can if required unsolder bios chips from them if needed.

    Any advice would be appreciated, surely it can be bricked forever
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