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BIOS Recovery

The chance for BIOS corruption is a readily understood risk. An improperly coded BIOS file, a bad flash routine, a power failure, and a variety of other problems can occur during the update.

Even after a failed flash, a potentially dead motherboard can possibly still be recovered. Most BIOS manufacturers (Award, Phoenix, AMI and Insyde) now include an option known as Boot Block protection. The Boot Block sector is write protected, thus it can only be damaged if the flash utility is explicitly directed by a command line switch to overwrite this EEPROM memory range. The Boot Block can load the most basic BIOS functions for the simple I/O operation of ISA video, floppy drive transfers, and keyboard   input. Luckily these features are all that is generally required to rebuild the entire working BIOS.

The instructions below specify using arbitrary names (like bios.fd) for the recovery information. In most cases you can determine the correct file recovery name for your machine by using Andy P’s SLIC tool from My Digital Life. This will help you determine the correct recovery name for your BIOS when you load it into the tool and will also help you make sure you correctly identify your BIOS type (Award, AMI, Phoenix, Insyde, etc.)

Download: Award/AMI Tool
Download: Phoenix/Insyde Tool
—Credit for these tools goes to Andy P and My Digital Life.

6 Responses to “BIOS Recovery”

  • hi

    i have two pga 470 motherboards. the bios on both have crashed.
    one board is a HP MS-6577.
    the other is a mercury board with ami bios.
    please help.

  • admin:

    For further support, please create a thread in our user forums at http://bios-mods.com/forum/

  • klodtn:

    Hello Admin,
    I want to ask you if there is a solution how to recover dell vostro 1310 after a failed update of Bios from A10 to A15
    Thanks,

  • J_Hack92:

    klodtn,

    First of all you should do a BIOS update one version to another dont hop around. (i.e. A02-A03) Each BIOS is like a patch, its not a software bundle.
    You can reflash the bios via .bin files by extracting them from the .exe files using 7-zip.
    You are going to need a heatgun to remove the BIOS chip and a SF-100 to program the bios.

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