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    Toshiba Satelite A300D-14P - BIOS Dead

    Discussion in 'Toshiba' started by PetranEVO, Oct 14, 2016.

  1. PetranEVO

    PetranEVO Notebook Enthusiast

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    Hello to all,

    I have a laptop in my hands which is with damaged BIOS as the previous owner said,tried to update it,and went black.

    I have also in my hands CH341APro with Cable clamp that i can hook my USB directly to the MicroChip (Bios) and program it from the beggining.

    But here is the tricky part.

    This program uses only .bin and .hex files.

    My BIOS chip on board have the codes of :

    1 )AMIC A25L080M-F <- Bios
    2 )24LC0881 <- EEPROM

    I go to Toshiba site and i download the : 3.30 version which is the last one.
    I extract it and inside i find "BD3G3A46.WPH".

    So how could i make this to be suitable to program it via my Program ?
     
    PetranEVO, Oct 14, 2016
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  2. t456

    t456 1977-09-05, 12:56:00 UTC

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    The WPH file is pretty close, really. It's only slightly too large due to the addendum required by the WinFlash program. This type is uncompressed, so all we have to do is remove that redundant information and make it 1,048,576 bytes exactly ( (8 Mbit / 8) *1,024 * 1,024):

    Satelite A300D-14P, bios v3.30 (binary).7z

    Mind that not all eeproms can be programmed directly with a clamp. It depends on the way they're hooked up to the motherboard and whether or not the write-protect pin is enabled. If so, then either short the WP to ground or VCC (with a resistor) or desolder the eeprom first.
     
    t456, Oct 14, 2016
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