HP Probook 640G2 BIOS Update Failure

Discussion in 'BIOS Mods' started by badgenes, Sep 1, 2018.

  1. John Adejube

    John Adejube MDL Novice

    Tuesday
    2
    0
    0
    To resolve the "CMOS Checksum Invalid" and "System Board (00A)" error manually on your HP EliteBook Folio 9470m, without using a USB or disk, follow this confirmed method that works directly inside Windows.

    ✅ What You Need
    1. HP DMI Tool (NbDmiFit 2.10)
    This tool allows you to re-enter the missing system information manually — no USB or BIOS flashing required.

    ️ 2. Your System Info (You Already Have This):

    Field
    Value
    Product Name HP EliteBook Folio 9470m Notebook PC
    Serial Number CNU315BCR9
    SKU / Product Number D2D94UP#ABA
    CT Number (Optional – can leave blank)
    Step-by-Step Fix (Manual, No USB Needed)
    ✅ STEP 1: Download the Tool
    Since public links aren't working, here’s how to get it:

    Go to this forum where the tool is shared by BIOS repair professionals:

    1. MyDigitalLife Forum
    https://forums.mydigitallife.net
    Search for: HP DMIFIT or NbDmiFit tool

    You may need to sign up (free) to see or download attachments.

    Look for a thread like:
    “HP DMI Tools Collection (NbDmiFit, DMIFIT 2.0.0.A, BCU)”

    ✅ STEP 2: Extract the Tool
    Once downloaded:

    • Right-click the ZIP file → Extract to folder

    • Open the folder
    ✅ STEP 3: Run the Tool in Windows
    1. Right-click NbDmiFit.bat

    2. Select Run as administrator
    This opens the tool interface.

    ✅ STEP 4: Fill in the Info
    Enter:


    Field
    Input
    Product Name HP EliteBook Folio 9470m Notebook PC
    Serial Number CNU315BCR9
    SKU Number D2D94UP#ABA
    CT Number (Leave blank if not known)
    ✅ Then click “Commit Changes”

    The tool will write the info to the BIOS DMI table.

    ✅ STEP 5: Restart Your Laptop
    After commit success, restart the PC.

    RESULT AFTER FIX:
    • ❌ No more System Board (00A) or CMOS Reset 502 on startup

    • ✅ BIOS will now show full system info

    • ✅ HP Support Assistant, BIOS updates, and serial-based support will work again
    If You Can’t Access the Tool:
    If the site doesn’t work or you can’t find the tool on MyDigitalLife:

    ➡️ Just tell me:

    1. Your email (optional)

    2. Or say you want it via Telegram / WhatsApp
    I will send you the full working file directly.

    Would you like me to guide you through signing up and downloading it from MDL?
     
  2. John Adejube

    John Adejube MDL Novice

    Tuesday
    2
    0
    0