Bios Recovery Procedures

Discussion in 'BIOS Mods' started by petar, May 9, 2008.

  1. The.Watcher

    The.Watcher MDL Junior Member

    Apr 7, 2008
    74
    1
    0
  2. rbjack

    rbjack MDL Junior Member

    Sep 24, 2009
    84
    2
    0
    yes its the MOD_4800.MOD and MOD_5100.MOD modules. the 16/32 bit msg is common also. When you build the rom in PBE, view the log for the class codes and identifiers for what they belong to.
     
  3. toosour

    toosour MDL Novice

    Dec 15, 2009
    14
    0
    0
    Thanks a ton rbjack - May I bother you some more pls

    I am totally a greenhorn at all this. May I pls request you to do this for me. Dont understand offsets etc.

    Maybe you have done it and saved the bin file at the link you gave.

    Thanks once again.
     
  4. rbjack

    rbjack MDL Junior Member

    Sep 24, 2009
    84
    2
    0
    i did it for you already in the link provided.
    offsets are just rows and columns like an excel sheet. only every cell contains one byte and there is a max of 16 columns (hex F). 0xFFFFF is 1MB file size (1024KB). If you use a hexeditor the last byte in the file I uploaded will be 0xFFFFF The Row will be 0xFFFF0 with the last byte in the F column. If you open the wph file and go to 0x100000 and you see where the extra information begins for the flash util. That's the info you delete to get the rom image. The blocks of memory that will be flashed are 0x00000 to 0xFFFFF, that is your bios.
     
  5. toosour

    toosour MDL Novice

    Dec 15, 2009
    14
    0
    0
    Really grateful to you for sharing this info

    Thank you so much for everything, especially explaining offsets to me. Any primer/site/book that will help understand all this?

    What would one need to learn to mod BIOSes? :)

    Best wishes for the New Year. Its people like you who make Internet such a wonderful space
     
  6. rbjack

    rbjack MDL Junior Member

    Sep 24, 2009
    84
    2
    0
    #351 rbjack, Dec 26, 2009
    Last edited by a moderator: May 23, 2017
  7. xbox

    xbox MDL Novice

    Jul 29, 2009
    14
    0
    0
    Thanks for the quick reply. Now need to find the magic combo for MEDION laptop BIOS and try to revive it using USB Stick. From what I read it seems to need to use USB Floppy.

    When the machine is working it, the USB Stick is seems as USB HDD. Not sure if it will work... My guess is I have to take out the HDD and try.:confused:
     
  8. Dav

    Dav MDL Novice

    Dec 13, 2009
    7
    0
    0
    help advice with Phoenix bios brick

    hi everybody,

    I've brick my Fujitsu P1630 (Phoenix bios) trying to flash the mod bios given in this forum (for slic 2.1).

    The laptop doesn't start anymore (black screen and beep when starting).

    I've read many many many treads and tried many many things.

    The only one working for me is to create a Crisis Disk on usb stick (with method4), the laptop boot on it... beep many times so I suppose this method is ok for me (crisis with minidos)
    (dos drive doesn't seem to work I can only boot with crisis disk)

    BUT

    i've got only a bios.rom (2048k) and the method seem's working only with a bios.wph (bigger in size)

    of course I've tried with bios.rom rename to bios.wph but it doesn't working (the usb boot and I've got a beep of the death then nothing and I suppose the bios.wph is too short for him)

    I've read many things about create autoexec.bat with parameters for phlash
    (like phlash16.exe /force bios.rom etc...)

    BUT

    the only method working for me doesn't read autoexec.bat (the MBR start minidos.sys who start phlash16.exe who read bios.wph, nothing else)



    Is there anyway to convert my bios.rom to bios.wph ???

    Or to force phlash to use other parameters ?


    Thanks
     
  9. Dav

    Dav MDL Novice

    Dec 13, 2009
    7
    0
    0
    You don't understand me.

    I CAN boot with Crisis Disk with my brick device.

    I CAN flash my bios with Crisis Disk.

    BUT not with bios for my laptop.

    Other bios from other model laptop (2061k size) -> flash ok (but laptop of course doesn't boot)

    Bios for my laptop (2048k size) -> no flash, a big BEEP then 3 short beep
    (but the Crisis Disk boot fine)
     
  10. Dav

    Dav MDL Novice

    Dec 13, 2009
    7
    0
    0
    seem's to be my problem

    bios.wph = bios.rom + platform.bin

    platform.bin is specific for every laptop

    platform.bin doesn't exist for my laptop

    I can't flash without platform.bin

    so it's dead :s
     
  11. mengchanchai

    mengchanchai MDL Junior Member

    Nov 25, 2007
    92
    3
    0
    I try to make AMI Recovery via bootable floppy diskette(1.44 MB capacity).
    But AMIBOOT.rom's size is 2.00 MB .
    Can anybody suggest how to do?
    Thanks in advance.
     
  12. urie

    urie retired mod

    May 21, 2007
    8,999
    3,380
    300
    Start by reading from the first page of this thread you can make a bootable cd or bootable USB Thumbdrive, instructions are posted.