Dell 7548 failed bios update, won't boot. Dell is handling issue

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  1. kmssd
    Posts : 16
    Windows 10
       New #1

    Dell 7548 failed bios update, won't boot. Dell is handling issue


    My laptop started displaying a screen during some shutdown attempts and would restart instead. I had to take a picture to read it and it said "Flash update failed, flash image invalid or not found, system will reset in 5 seconds."
    This prompted me to check dells site which said I had an urgent bios update. Downloaded the file, installed and it locked up. Nothing made progress, mouse cursor wouldn't move nothing for 30 minutes. Had to force shutdown. Now it just shows a black screen at powerup, no display, backlit keyboard doesn't light.
    PC running Win10,
    Any ideas?
    Last edited by essenbe; 15 Aug 2020 at 11:26. Reason: Remove personal info
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  3. dalchina
    Posts : 42,983
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #2

    Hi, you have a Dell PC. If you are lucky your PC may have a feature to help you. See:
    https://www.dell.com/support/article...tablet?lang=en

    Otherwise:
    How to Recover from a Failed BIOS Update Procedure | Your PC: BIOS Configurations and Upgrades | InformIT

    https://lazyadmin.nl/it/bios-recover...update-failed/
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  4. kmssd
    Posts : 16
    Windows 10
    Thread Starter
       New #3

    Dell key combo did nothing, tried with and without using power button.
    From the other links, I don't have a floppy and I'll check if the bios is socketed or soldered. The third link, what would I name the files since I don't have a Vostro?
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  6. dalchina
    Posts : 42,983
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #4

    Thank you for your reply.

    The last is just indicative.. if yours is not supported by the DELL feature (did you check that?) then you will need to appeal to your manufacturer of nothing else works.
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  7. kmssd
    Posts : 16
    Windows 10
    Thread Starter
       New #5

    My warranty expired in 2016, so I might fall into method 1 or 2 (I could look for my receipt).
    Edit: If I hold the end key and plug in ac computer will power on automatically, but then the same black screen.
    Edit2: Bought 9/15, so definitely method 1.
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  8. zbook
    Posts : 41,472
    windows 10 professional version 1607 build 14393.969 64 bit
       New #6

    See if this can test the hardware:
    http://www.dell.com/support/article/...codes-?lang=en
    https://www.dell.com/support/article...ows-10?lang=en
    https://www.dell.com/support/article...tablet?lang=en
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  9. kmssd
    Posts : 16
    Windows 10
    Thread Starter
       New #7

    First one powers on to nothing, second doesn't apply because Dell doesn't appear (like no post at all), and the third I tried from the first member.
    I'm thinking the motherboard died..
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  10. zbook
    Posts : 41,472
    windows 10 professional version 1607 build 14393.969 64 bit
       New #8

    Indicate any beep codes:

    What is POST?
    Computer POST and beep codes
    POST troubleshooting steps


    Run through the applicable POST troubleshooting steps.
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  12. kmssd
    Posts : 16
    Windows 10
    Thread Starter
       New #9

    No beep codes. If I put my head next to the speaker I hear a tiny click, but the pattern is never the same. So I doubt there anything.
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  13. zbook
    Posts : 41,472
    windows 10 professional version 1607 build 14393.969 64 bit
       New #10

    https://www.dell.com/en-us/shop/serv...E&gclsrc=aw.ds


    If you're comfortable inside the computer you can temporarily remove and reinstall the CMOS battery to see if it makes any difference.
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