HP Elitebook 840 Aero G8 Bios

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  • Wutru
    HP Elitebook 820 G4 BIOS repair assistance required
    by Wutru
    Hi guys,

    If someone would be able to provide some expertise, I'd be very grateful.

    BIOS Corruption - Cause
    So I managed to corrupt my machine by installing linux and enrolling custom secure boot keys. I did choose to enroll the Microsoft keys as well, to prevent any potential bricking due to 3rd party drivers from HP being signed with those keys.
    After doing that, and rebooting(it did boot, powerLED, fanspin etc.), the laptop did not give any video output on the LCD or video connectors. I think I was able to get in BIOS and trigger the beeper by pressing ESC....
    09-06-2025, 10:32 AM
  • FalconPunch
    Surface Pro X 1876 Bios corrupted
    by FalconPunch
    Hello everyone, I happen to have a Microsoft Surface Pro X 1876 in my hands. It was brought to me by a friends which happen to have taken off the bios chip to test another motherboard. Upon putting back the bios chip on the original motherboard, The PC is stucked on Windows logo and won t boot to bios or anything. I suspect that the changes of bios chip somehow corrupted the firmware inside. Is the hypothesis correct?

    Also i extracted the bios inside the chip which was on Winbond 25R128JWPQ you can find the file attached if you can fix it (if possible, I would like some insight on...
    08-09-2025, 03:56 AM
  • zlr8r
    Hp Zbook Firefly 14 G10 - corrupted Bios's ? - please check
    by zlr8r
    Greetings

    I am hoping someone could have a check of my Hp Zbook Firefly 14 G10 , 2 x 32MB Bios files... (powers on / black screen).

    Serial Number: 5CG3202C16
    Product #/SKU: 739P0AV
    CT Number: PRTUE00WBI30YX
    Description: HP ZBook Firefly 14 inch G10
    BuildID: 23WWWGAZ602#SABU#DABU
    Feature Byte: 476J6S6b7B7M7Q7U7W7m7saBaEapaqauawbUbhcAfPgSguhKj4jhk8mEn7nVngpDpVpWpnpqprqMqkqz.G3
    MAC address not found.
    • I extracted both 32mb bios files (Main + EC). But when i run the main 32mb bios through MFIT.exe , it produces this error; ie:,

    ...
    10-28-2025, 01:56 PM
  • STKR123
    The right BIOS Programmer - The right software (HP Elitebook 820 G1, 840 G2) no soldering, EC, DMI, ME
    by STKR123
    Greetings badcaps community,

    I havent done this for a long time and want to start it all again, after some evil and annyoing illness.
    So I apologize in advance, if some phrases might sound a bit like gibberish or illogical to you.

    Im trying my best to fully describe what I plan to achieve and hope I was choosing the right sub-forum for my new adventure.

    I have a Elitebook 820 G1 and a Elitebook 840 G2 here.

    These ask for a password when entering the BIOS, but boot just fine from the internal SSD.

    I learned that desoldering...
    10-29-2024, 06:03 AM
  • macabook
    🛠️ MSI GP75 Leopard MS-17E71 – No Display, Deep BIOS/EC Troubleshooting
    by macabook
    Hello everyone,

    I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
    🧩 Initial Issue
    • Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
    • External display (HDMI) shows
    ...
    07-24-2025, 02:17 PM
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