Extracting vBIOS from Sony EFI/Insyder Notebook BIOS

Discussion in 'BIOS Mods' started by m17, Feb 1, 2013.

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  1. m17

    m17 MDL Novice

    Feb 1, 2013
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    Hi there,

    I'm trying find the vBIOS in my Sony VPC-EA290S's bios to modify it.
    However, I'm running into trouble just finding the thing.
    I've successfully opened the original BIOS up in PheonixTool, and got a dump of it.
    But I can't the vBIOS at all! The GPU is a AMD 5650 and the bios is supposed to be 64KB. And while there are 2 files similar size in the dump, looking at them with a hex editor it is clear neither of them are the vBIOS.
    Searching for a text string through all the files makes it appear the 1MB file A062CF1F-8473-4AA3-8793-600BC4FFE9A8_1_184.ROM is a video BIOS. However, when I open it up in RBE it thinks it is a bios for an old card (like before HD3xxx - which is clearly not the case).

    So I must be doing something wrong, or looking in the wrong place.

    If anyone could help me find the proper vBIOS I'd be very grateful!