Sony Vaio w/ AMIBIOS bricked, black screen

Discussion in 'BIOS Mods' started by Lutschpuppe, May 13, 2018.

  1. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
    83
    18
    0
    Hello,

    i got a Sony Vaio laptop SVP132A1CM (nothing to find, another possible model-number seems to be SVP1321C5E or SVP1321S1EBI).

    After bios-update (AMI Aptio 4) with manual and UBU-modified bios, it seems to work, but has blackscreen and no output on HDMI-port. I guess something goes wrong with the vga-bios or gop. I have a copy before updating bios.

    What was modified:
    -manual replacing latest microcode and adjusting the _FIT_-table with UEFI-tool and hexeditor
    -manual replacing vga-bios (haswell mobile) from 2171 to 2175 with MMTool, settings transfered with Intel BMP utility
    -GOP-driver updated with UBU, from 5.0.1025 to 5.0.1034
    -flashed with DOS-tool AFUDOS with /GAN-command because of secureflash
    -flash memory is Winbond W25Q64 1,8V SPIFLASH, EF4017 in VSCC-table

    Any idea for restoring or repairing the bios? Or only reprogramming with spiflasher? Thanks!
     
  2. tqhoang

    tqhoang MDL BIOS Modder

    Apr 29, 2008
    1,402
    277
    60
    Can you post your original & unmodified BIOS ROM?
    Also when you did the microcode mod, did you make sure that you adjusted each microcode to start on 0x800 boundaries?

    If you open it with AndyP's PhoenixTool, it'll tell you if it has a recovery filename.
     
  3. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
    83
    18
    0
    None of recovery method is working. :(

    And why microcode-insertion twice instead of replacing the single microcode one time?
     
  4. tqhoang

    tqhoang MDL BIOS Modder

    Apr 29, 2008
    1,402
    277
    60
    #6 tqhoang, May 15, 2018
    Last edited: May 15, 2018
    I noticed that module is in the UEFI twice...similar to my Shuttle XPC UEFI BIOS. In mine it was duplicated (possibly for UEFI and legacy BIOS mode). I just updated both just in case.

    For the recovery, make sure you try all the different USB ports on your laptop. Also for key combos perhaps try: {Window+ESC or Window+B or FN+ESC or FN+B or END}. I even saw someone didn't need to press any keys and just powered on with the USB stick.

    Just one question that I forgot to ask. Did your UEFI originally come with AFUDOS to flash? If not, just curious why you chose that versus something like FPT.
     
  5. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
    83
    18
    0
  6. Lutschpuppe

    Lutschpuppe MDL Junior Member

    Dec 23, 2014
    83
    18
    0
    Anyone who has a spi-image for this or similar laptop?
     
  7. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
    5,431
    1,486
    180
    take pics of the board descriptions to find .bin