Is there a way to dump ROM/HDR from modern Dell UEFI .exe

Discussion in 'BIOS Mods' started by reece394, Jan 16, 2016.

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  1. reece394

    reece394 MDL Novice

    Nov 26, 2011
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    #1 reece394, Jan 16, 2016
    Last edited by a moderator: Jan 16, 2016
  2. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    after you run phoenix tool on it. . check the dump folder for 15 meg file
     
  3. reece394

    reece394 MDL Novice

    Nov 26, 2011
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    #3 reece394, Jan 16, 2016
    Last edited: Jan 16, 2016
    (OP)
    Yep I see the BIOS dump. However when I open it with UEFI tool (BIOS0.BIOS) It gives me an error and says invalid UEFI volume? The errors are as follows parseSection: section with unknown type 75h. parseFile: invalid header checksum. parseFile: invalid datachecksum. parseFile: unknown file type 218h parseBios: unaligned revision 2 volume. ParseBios: one of volumes overlaps the end of data. I am going to guess that the UEFI/BIOS is encrypted and I can't do anything with it? Really hope there is a way to see it decrypted if it is.
     
  4. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
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    Did you try the modded BIOS (included SLIC)? Is ist working? Perhaps i will get a XPS, but with Windows 7 instead of 10.
     
  5. reece394

    reece394 MDL Novice

    Nov 26, 2011
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    I haven't tried the modded BIOS as I am not interested in adding SLIC to it. I am interested in seeing the way the BIOS/UEFI is configured and what the DVMT-Preallocation is so that I can run OS X on it. I am very happy with Windows 10 so I don't need to run Windows 7 on it. Scaling on Windows 7 would be worse than Windows 10 I am sure for the 4K screen option! Those errors don't give me much confidence though if I was to flash it! I definitely need to be sure it is valid before flashing anything!
     
  6. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
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    Can you please upload an rw-report of your XPS? I'm interested, if this model has already SLIC-table.
     
  7. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    try universal bios backup tool?
     
  8. reece394

    reece394 MDL Novice

    Nov 26, 2011
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    Yep that did it! Thanks so much. Can fully read the BIOS/UEFI used Universal IFR Extractor to read Setup.bin so it seems like the Dell UEFI is a heavily modified AMI UEFI :D
     
  9. reece394

    reece394 MDL Novice

    Nov 26, 2011
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    As for your question I can confirm the Dell XPS 15 9550 has a SLIC table already Version 2.1 as well as an MSDM in my case for Windows 10 Home. (Installed Windows 10 Pro as soon as I got it though :p)
     
  10. GoNz0

    GoNz0 MDL Novice

    Feb 27, 2010
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    Anyone know how to change the BIOS key as I would like to swap OEM licences over so I can switch out my SSD with pro into my other 9550?

    I have had a quick look with notepad++ and can see the licence twice, I don't want to brick the laptop by swapping the licence over, also if it really is this simple how do I flash the image back to the laptop?

    Thanks.