I present you a tool to decompress Dell UEFI BIOS

Discussion in 'MDL Projects and Applications' started by JimboBobB, May 4, 2013.

  1. Tito

    Tito Super Mod / Adviser
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    Nov 30, 2009
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  2. Foosking

    Foosking MDL Novice

    May 6, 2014
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    I have been trying for 6 hours to find a way to extract my Dell N5050 A05.exe NonUEFI AMI bios in Win 7.
    AMIUCP did the trick.:yeahyeah:
     
  3. qballdc

    qballdc MDL Novice

    Aug 26, 2014
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    Thank you very much.
     
  4. jayblok

    jayblok MDL Guru

    Dec 26, 2010
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    Thanks,this is much appreciated! :worthy::worthy::worthy:
     
  5. qballdc

    qballdc MDL Novice

    Aug 26, 2014
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    Maybe I incorrectly stated the issue. I can extract both the rom and hdr file using:

    3520a10.exe /writeromfile
    3520a10.exe /writehdrfile

    with the results being:
    3520a10.rom and 3520a10.hdr

    using the phoenix tool I obtain the proper name for the rom ( M*****.rom ), but am not able to get the proper name for the hdr file. Never having used amiucp I not clear if it provides the proper name for the hdr file once the extraction is complete. Also I haven't been able to find a good read on hdr vs. rom file so I can get a better handle on the whole matter. As an engineer maybe I'm being to analytic. This is my first attempt to look at bios recovery from a failed flash.

    In a nutshell:
    Laptop was password protected at system bios level and hd protected. It was left given to a client when grandmother passed. I shorted bios chip and system level password gone. Tried to use a combination of bios switches when flashing in an attempt to remove password ( before giving up and telling client to get new hd ) and the system never recovered and now I'm left with blank screen. I've tried every tool I could think of and now realize that I have been using the laptop keyboard as apposed to an external keyboard, maybe that will give some different results.

    I appreciate any input. The matter has become very personal :cool: and driving me nuts.
     
  6. qballdc

    qballdc MDL Novice

    Aug 26, 2014
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    Oh, I'm familiar with scripts, from the school of c, fortran, ... bash, korn, Oh My God, not batch files... we would always comment clearly to remove guess work. I guess I'll get it myself. Haven't had to visit these parts, but I will figure out an algorithm that doesn't include guessing. We're aiding one another or people pretending. No, I've never used Python, but can't be that hard, ..., I guess. Proper testing of what ?? Shhh .....:mad:
     
  7. hatdz

    hatdz MDL Novice

    Sep 28, 2015
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    Sorry to wake up a dead thread, but can you please provide an updated link to the file (AMIUCP) as I have been looking for ages on the internet and have found nothing.
     
  8. Tito

    Tito Super Mod / Adviser
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  9. FredWst

    FredWst MDL Novice

    Nov 18, 2013
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    #49 FredWst, Oct 3, 2015
    Last edited: Oct 3, 2015
    Hello,

    It works for Dell 7010 bios, i'm able now to patch what i want with CodeRush UEFITools.
    I've been able to recompress modded bios. (python compress)
    Now i wonder how to put in exe file.

    Maybe just replace compress file in exe and take care to change size of file in header. 16 byte before #The 0x789C at the end is the zlib header. and change the end of compress which look like first 16 byte

    But is this enough ?


    Fred
     
  10. cable0

    cable0 MDL Novice

    Jun 23, 2016
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    what a find! not to start the hacking
     
  11. Mondher

    Mondher MDL Novice

    Jan 31, 2017
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    good job

    tested it on dell e5530 bios and work fine thanks bro :)
     
  12. NathanDrake

    NathanDrake MDL Novice

    Apr 7, 2017
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    Very helpful, save so much time... I wish I could buy u a beer man.
     
  13. florencedagongdong

    florencedagongdong MDL Novice

    Jul 20, 2017
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    Hi Guys, I followed this thread but I think we all are stuck at what the file name should be for the HDR file. I also have the same problem for my E6410 laptop. Did anyone successfully revived their bricked motherboard?
     
  14. ShellyCooper

    ShellyCooper MDL Novice

    Mar 31, 2015
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    Hello, I have the .hdr file but as a flash on bios chip?, I have the ch341a programmer, thanks.


    P.D sorry for my bad english, i use google traslator.
     
  15. egyeprom

    egyeprom MDL Novice

    Apr 22, 2014
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    Macallan140.rom
    Macallan140.HDR
    I think for e6420
     
  16. imranromi

    imranromi MDL Novice

    Nov 23, 2017
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    THANK YOU I TRY WORK DELL LATITUDE EXE FILE EXTRACT HDR.
     
  17. James Prendergast

    James Prendergast MDL Novice

    May 21, 2018
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    How do I download this tool to decrypt my Dell UEFI BIOS.... from what I can tell I need Decrypt.exe?
     
  18. aditya11tt

    aditya11tt MDL Novice

    Jul 14, 2016
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    hello
    everyone here
    i think we can easily get .HDR file from exe file download from the dell website
    using phonix266 tool easily and of which u can make your main bios !!
    4mb or 8mb depending on the model!!
     
  19. A2issa

    A2issa MDL Novice

    Nov 1, 2018
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    Hi all,

    I have dell E6420 and E6420A25.hdr using the method from this threat but when I hold end key it doesn't do anything.

    Please help.

    Ali