Bios file size bigger than chip

Discussion in 'BIOS Mods' started by rallisf1, Mar 22, 2013.

  1. rallisf1

    rallisf1 MDL Novice

    Mar 22, 2013
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    Hey folks,

    I run a computer store and recently got myself an eeprom programmer to solve bios issues.

    I am facing a problem with only a few bios images (mainly phoenix and insyde) which happen to be a few kilobytes bigger than the flash-rom capacity. I am not talking about the .exe or .zip files i download but for the extracted .wph and .fd files.

    I tried flashing the file to a bigger chip but that was a no-go for the laptop (i am trying on a lenovo ideapad S10-3 right now). I also tried overburning the original chip without success, so i suspect there is some "rubbish" in the downloaded files that i need to delete through a hex editor or maybe the phoenix bios editor but i'm clueless about which part and how to delete it.

    I'd appreciate some help on this. :bangin:
     
  2. Tito

    Tito Super Mod / Adviser
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    Nov 30, 2009
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    Read this thread -> http://forums.mydigitallife.net/threads/33566

    Basically you need to backup the contents of the chip using a programmer and then compare it with the official bios package. Then cut the extra platform data (in case of Phoenix) or padding data (in case of Insyde) using a hex editor.

    Yen & LatinMcG are masters in this field.

    :hug2:
     
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  3. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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  4. rallisf1

    rallisf1 MDL Novice

    Mar 22, 2013
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    @Tito thanks for the link it was really helpfull

    @LatinMcG i am currently trying with FL5D. The laptop died after flashing the latest bios through windows so i guessed making a backup wouldn't help but now i think i was wrong about that.

    Anyway, the bios file has many blank lines (FF FF FF) but by deleting any or even all of them makes the file unreadable by phoenix bios editor. I tried then cutting the beggining of the file at random points and seems to be ok when cutting the first 20k offset but i will try flashing tomorrow morning as i need to go now.

    Thanks everyone for your help i will post back when i have news.

    P.S. in most other forums bios editing and other "high-tech" stuff are like government secrets and rarely anyone helps in such cases like mine. I'm really glad you are not one of those; i'll soon post some guides from personal experience on hardware flashing eeproms to contribute to this forum.
     
  5. Tito

    Tito Super Mod / Adviser
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    Don't use PBE. It is buggy as hell and doesn't support modern Phoenix bios.
     
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  6. rallisf1

    rallisf1 MDL Novice

    Mar 22, 2013
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    Still trying with this lenovo among other tasks. I read in some post people used some Andy's tool to extract bios bin file from wph and fd files but i cannot find this function anywhere. I have downloaded "PhoenixTool" made by Andyp as this was all i could find but there is no extract function in it. Do i need another tool or am i still missing something?
     
  7. Tito

    Tito Super Mod / Adviser
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    Nov 30, 2009
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