Anyone know how to extract a Dell bios from the ****.exe?? How to modify the ROM?

Discussion in 'Windows 7' started by jeff69dini, Jun 29, 2009.

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  1. Ozymandias

    Ozymandias MDL Junior Member

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    #41 Ozymandias, Jun 30, 2009
    No problem.

    I'm planning on updating my bios when I understand a bit more of how to hack the 2.0 SLIC to 2.1 or if you fancy having a go :)
     
  2. Yen

    Yen Admin (retired)
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    #42 Yen, Jun 30, 2009
    Last edited by a moderator: Apr 20, 2017
    Code:
    Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

00081870                                        44 45 4C 4C               DELL
00081880   20 20 4D 30 38 20 E0 02  80 00 57 49 4E 44 4F 57     M08 à.€.WINDOW
00081890   53 20 04 1C E0 0E F0 71                            S ..à.ðq
    After these bytes 80h bytes of the encrypted marker data follow (F6h-175h at a common SLIC). If you exchange them, I don't know if the marker version bytes are right or still at 00 00 00 (bytes after the 'WINDOWS ' string...)
     
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  3. jeff69dini

    jeff69dini MDL Expert

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    #43 jeff69dini, Jun 30, 2009 (OP)
    lol, cool! does that mean you can help me with my problem? and I guess others as well...haha

     
  4. Yen

    Yen Admin (retired)
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    #44 Yen, Jun 30, 2009
    These are completely different matters. You've got Award bios, Ozymandias has got Phoenix-Dell!!!

    But I'm still hopeful that I can help you.....later...;)
     
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  5. jeff69dini

    jeff69dini MDL Expert

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    #45 jeff69dini, Jun 30, 2009 (OP)
    thanks Yen, you're the bestest ever.....hope that this info will benefit all
     
  6. shakeyplace

    shakeyplace MDL Addicted

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    #46 shakeyplace, Jun 30, 2009
    Last edited by a moderator: Apr 20, 2017
    Great work Yen, looking at some more recent SLICs the code after the windows string looks more like this]
    Code:
    Offset      0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F

00081870                                        44 45 4C 4C               DELL
00081880   20 20 42 31 30 4B 20 20  20 00 57 49 4E 44 4F 57    B10K à.€.WINDOW
00081890   53 20 01 02 19 E0 0F F0  71                        S ..à.ðq
    I have found that in 2 recent phoenix slics, am thinking that will produce the required result
     
  7. shakeyplace

    shakeyplace MDL Addicted

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    #47 shakeyplace, Jun 30, 2009
    Last edited: Jun 30, 2009
  8. Yen

    Yen Admin (retired)
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    #48 Yen, Jun 30, 2009
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  9. shakeyplace

    shakeyplace MDL Addicted

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    #49 shakeyplace, Jun 30, 2009
    Fantastic Yen,
    I am unsure of the exact starts and end points for marker data, figured I would leave it to the expert, also kinda figured out this NOT thing now, but I will leave it up to the expert because of the exact start and end of the marker data
    Thanks
     
  10. jeff69dini

    jeff69dini MDL Expert

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    #50 jeff69dini, Jun 30, 2009 (OP)
  11. Yen

    Yen Admin (retired)
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    #51 Yen, Jun 30, 2009
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  12. jeff69dini

    jeff69dini MDL Expert

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    #52 jeff69dini, Jun 30, 2009 (OP)
  13. jeff69dini

    jeff69dini MDL Expert

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    #53 jeff69dini, Jun 30, 2009 (OP)
  14. Yen

    Yen Admin (retired)
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    #54 Yen, Jun 30, 2009
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  15. Yen

    Yen Admin (retired)
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    #55 Yen, Jun 30, 2009
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  16. jeff69dini

    jeff69dini MDL Expert

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    #56 jeff69dini, Jun 30, 2009 (OP)
    interesting, but mine has no built in flash......dell doesn't mention it, my bios has no mention of it i'm afraid

     
  17. Yen

    Yen Admin (retired)
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    #57 Yen, Jun 30, 2009
    Last edited: Jun 30, 2009
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  18. shakeyplace

    shakeyplace MDL Addicted

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    #58 shakeyplace, Jun 30, 2009
  19. Yen

    Yen Admin (retired)
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    #59 Yen, Jun 30, 2009
    The command -readgzfile doesn't work at CMD window! You mean I have to boot into pure DOS?
    What gzip are you using?
    About the checksum, I'll have a look again, maybe I did a mistake....there is still hope....:)
     
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  20. shakeyplace

    shakeyplace MDL Addicted

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    #60 shakeyplace, Jun 30, 2009
    update, gzipped up original hdr file renamed it, booted to Dos. successful flash using -readgzfile parameters. gzipped with 1.3.12 using default parameters
     
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