This is no request thread! HP COMPAQ bioses, how to modify the bios?

Discussion in 'BIOS Mods' started by Yen, Aug 6, 2009.

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  1. sebus

    sebus MDL Guru

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    #1041 sebus, Sep 28, 2010
    NO, sadly only floppy. Do not like it, complain to HP!
    When flashing the BIOS always try to understand the risks & how to overcome them

    sebus
     
  2. ghoffman

    ghoffman MDL Novice

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    #1042 ghoffman, Sep 28, 2010
    Last edited by a moderator: Apr 29, 2017
  3. marian23

    marian23 MDL Novice

    Sep 24, 2010
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    #1043 marian23, Sep 28, 2010
    yes you are right., i have a bricked laptop too hp530, please remove the bad bios .............
     
  4. openfly

    openfly MDL Member

    Oct 18, 2009
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    #1044 openfly, Sep 30, 2010
    The Hp530(sp38863_MOD.zip) has worked greatly on my HP530 without any problem.
     
  5. bozo2467

    bozo2467 MDL Novice

    Aug 6, 2009
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    #1045 bozo2467, Sep 30, 2010
    Is this a mistake for nc8430/nx8420/nw8440 between the old and no SLP check, and EF should be 90?

    < 00172f0: 8688 2528 e8ef e505 7250 30ac 571e 06eb ..%(....rP0.W...
    ---
    > 00172f0: 8688 2528 90ef 9090 9090 30ac 571e 06eb ..%(......0.W...
     
  6. TTAV134

    TTAV134 MDL Expert

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    #1046 TTAV134, Oct 1, 2010
    It is not a mistake, dont forget we are here in a compressed area, a mixed of code and compression intructions.
    If you are interessed, use ADDCC to decompress an original BIOS and this modified one to compare results.
     
  7. bozo2467

    bozo2467 MDL Novice

    Aug 6, 2009
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    #1047 bozo2467, Oct 2, 2010
    I decompressed it and it looks a lot better.

    $ diff ../mod0/02_POST_00020100_Rom.dec.x 02_POST_00020100_Rom.dec.x
    2560,2561c2560,2561
    < 0009ff0: 0067 66c7 8688 0000 0000 0000 00f8 e8e5 .gf.............
    < 000a000: 0572 5066 5666 571e 0606 b801 0068 68a4 .rPfVfW......hh.
    ---
    > 0009ff0: 0067 66c7 8688 0000 0000 0000 00f8 9090 .gf.............
    > 000a000: 9090 9066 5666 571e 0606 b801 0068 68a4 ...fVfW......hh.

    Thanks
     
  8. opiumid

    opiumid MDL Novice

    Jul 11, 2010
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    #1048 opiumid, Oct 3, 2010
    Hallo People,
    HP Compaq 540/550 Notebook PC (version F.00 22-may-2008)
    is this bios work anybody try ??? my hp 550 have bios 68mvu f.05 from 01/19/2009 , but on the hp side is only this like modded bios (version F.00 22-may-2008)
    CAN I FLASH IT with old One ???????
    Thanx in Advance!!!
     
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  9. TTAV134

    TTAV134 MDL Expert

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    #1049 TTAV134, Oct 3, 2010
  10. opiumid

    opiumid MDL Novice

    Jul 11, 2010
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    #1050 opiumid, Oct 3, 2010
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  11. TTAV134

    TTAV134 MDL Expert

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    #1051 TTAV134, Oct 3, 2010
  12. opiumid

    opiumid MDL Novice

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    #1052 opiumid, Oct 3, 2010
    it dosen't matter :p
     
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  13. andmail

    andmail MDL Junior Member

    May 11, 2008
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    #1053 andmail, Oct 3, 2010
  14. sebus

    sebus MDL Guru

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    #1054 sebus, Oct 3, 2010
    Exactly, this, as well as the hidden SLIC issue that SLP ON would show

    sebus
     
  15. TTAV134

    TTAV134 MDL Expert

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    #1055 TTAV134, Oct 4, 2010
  16. sebus

    sebus MDL Guru

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    #1056 sebus, Oct 4, 2010
    Just what I said...

    sebus
     
  17. andmail

    andmail MDL Junior Member

    May 11, 2008
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    #1057 andmail, Oct 5, 2010
  18. TTAV134

    TTAV134 MDL Expert

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    #1058 TTAV134, Oct 5, 2010
    have you found a way to flash protected area (F0000h-FFFFFh) ?
     
  19. andmail

    andmail MDL Junior Member

    May 11, 2008
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    #1059 andmail, Oct 6, 2010
    Downgrading F.0F -> F.06 -> F.00 cann't update the protected area (it's still in F.0F state), but BIOS detected as downgraded (File -> System information -> ROM BIOS Version).
     
  20. sebus

    sebus MDL Guru

    Jul 23, 2008
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    #1060 sebus, Oct 6, 2010
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