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    Flashing BIOS from dos

    Discussion in 'Acer' started by psolms, Aug 11, 2008.

  1. psolms

    psolms Notebook Enthusiast

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    ive heard that this is the best way (not to mention flashing from windows led me to a dead BIOS... recovery here)
    but how is it done? specifically on an Acer Aspire 5720Z... :p
    thanks so much
     
    psolms, Aug 11, 2008
    #1
  2. gerryf19

    gerryf19 I am the walrus

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    create or download a boot floppy disk, copy the bios file (usually a *.bin), and copy the bios installer program to the floppy

    Boot into DOS, at command prompt type command, which is usually something like

    amiflash 9811a.bin

    and hit enter
     
    gerryf19, Aug 11, 2008
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  3. psolms

    psolms Notebook Enthusiast

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    ... and if i dont have a floppy drive (or a usb floppy for that matter)?
     
    psolms, Aug 11, 2008
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  4. gerryf19

    gerryf19 I am the walrus

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    then you make yourself a bootable cd and integrate the two files mentioned previously--how you do that depends on the software you have
     
    gerryf19, Aug 11, 2008
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  5. psolms

    psolms Notebook Enthusiast

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    what software would i need?
    any advice?
     
    psolms, Aug 11, 2008
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  6. bigozone

    bigozone JellyRoll touring now

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    you need a BOOTABLE ISO file to burn to a CD (search GOOGLE FOR this file name(( Win98SE_Boot_CD_USA.iso)))

    and you need ALCOHOL120 to burn that ISO image to the CD....

    then you make a second CD that contains the DOS VERSION of your laptop's latest BIOS and the BIOS-FLASHER...

    after making those 2 CDs...

    boot using the WIN98 boot CD (disk 1), and after system boots to DOS PROMPT (X:\ (where x is the current drive letter))

    you then swap CDs putting the DOS BIOS CD (disk 2) into the CD DRIVE and follow the instructions incuded in the DOS BIOS.ZIP file
     
    bigozone, Aug 12, 2008
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  7. psolms

    psolms Notebook Enthusiast

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    ok, but my DOS wont recognise any other cds...
     
    psolms, Aug 12, 2008
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  8. bigozone

    bigozone JellyRoll touring now

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    i'll modify the DOS BOOT DISK ISO and re upload it for you!
     
    bigozone, Aug 12, 2008
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  9. psolms

    psolms Notebook Enthusiast

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    never mind.. i looked more closely at the failed readings of the cd messages...
    i wasnt making discs the right format (ISO 9660) i was making them ISO_9660+UDF...
    so it couldnt read them.
    i figured that out and the flash worked
    now i just need to make sure everything is still cool with vista
     
    psolms, Aug 12, 2008
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  10. bigozone

    bigozone JellyRoll touring now

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    cool..

    i thought something on your end was wrong
     
    bigozone, Aug 12, 2008
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