Extracting vBIOS from Sony EFI/Insyder Notebook BIOS

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

  1. m17

    m17 MDL Novice

    Feb 1, 2013
    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!