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Dell Latitude 5420 - Faulty BIOS Image

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  • SHONE984
    replied

    Hello. I have a very strange problem with the bios file. After deleting it and trying to enter the same file again, the laptop does not start and remains at 5v. I tried with another bios chip XMC from another laptop and I get 19v but now the display changes colors. then I tried to read the same XMc chip to erase and load the same file, but now with the same file I get 5v. please help
    Click image for larger version

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  • hani55
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by hoaca388 View Post
    Unlocked
    thank you brother working 100/100

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by hani55 View Post
    working Latitude_5420TGL but password bios

    thank you very much brother
    Unlocked
    Attached Files

    Leave a comment:


  • hani55
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by hoaca388 View Post
    dell latitude 5420
    sv 94nhdk3
    working Latitude_5420TGL but password bios

    thank you very much brother

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by hani55 View Post
    can my friends help me fix the bios file that is not displaying?

    dell latitude 5420
    sv 94nhdk3
    dell latitude 5420
    sv 94nhdk3
    Attached Files

    Leave a comment:


  • hani55
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Can my friends help me fix the BIOS file that is not displaying?

    DELL LATITUDE 5420
    SV 94NHDK3
    Attached Files

    Leave a comment:


  • Maxpower3
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by hoaca388 View Post
    Try again
    Please help with serial number
    Test with this bios ok but bad serial number

    need serial BYDN2F3 (no power with original bios 5volt only on USB C)
    ---------------------------------
    EDIT PROBLEM SOLVED

    NO SERIAL WITH THIS BIOS
    Main_32mb hung on dell logo
    -----------------------------------
    Attached Files
    Last edited by Maxpower3; 04-18-2023, 01:19 AM.

    Leave a comment:


  • SMDFlea
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by haithem View Post
    CML : turn on few seconds then off without display
    TGL : turn on then hung on light without display (no dell logo)
    i have never encounter this strange issue !
    CML is Comet lake, TGL is tiger lake. Your CPU is a tiger lake U .The laptop is still under warranty by the way: ProSupport Flex ,Expires 25 JUN 2024
    Attached Files

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    CML : turn on few seconds then off without display
    TGL : turn on then hung on light without display (no dell logo)
    i have never encounter this strange issue !

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Try two files again
    Attached Files

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    always hang on dell logo , 6 white 3 orange on power led , fan not working

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Try this file and see what happens next.
    Attached Files

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    does not work always turn on , light without display , 6 white 3 orange on power led

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    same issue , look at the video joined
    Attached Files

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by haithem View Post
    does not work also , same result
    Latitude 5420
    Service Tag: 7ZHG1F3
    Attached Files

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    does not work also , same result

    Leave a comment:


  • anhbanxoi
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by haithem View Post
    ook , thank you very much , im waiting
    Try this file and feedback. You should be able to modify the service tag.
    Attached Files

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    ook , thank you very much , im waiting

    Leave a comment:


  • hoaca388
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Originally posted by haithem View Post
    dell are saying that error message : 6 white 3 orange means :
    flash corruption detected by SBIOS .
    i dont know what means SBIOS , is it the secondary bios 16mb ?
    we know that MBIOS means main bios 32mb
    i think i must try to dump both bios
    No, this is my fault , need repair EC region in bios file but i am working now, i will do that tomorrow.

    Leave a comment:


  • haithem
    replied
    Re: Dell Latitude 5420 - Faulty BIOS Image

    dell are saying that error message : 6 white 3 orange means :
    flash corruption detected by SBIOS .
    i dont know what means SBIOS , is it the secondary bios 16mb ?
    we know that MBIOS means main bios 32mb
    i think i must try to dump both bios

    Leave a comment:

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