@startergo - hex editor

Zitat von Sylar76 im Beitrag #1124

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@trax7

Could you check this new file please ?

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Zitat von startergo im Beitrag #1125

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Does anyone know how to extract the EFI image?

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Zitat von Lost_N_BIOS im Beitrag #1126

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@startergo - hex editor

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Found Nvidia IFR header before ROM start, size 0x400
 
ID of IFR header  = CC77-4956
 
ID of ROM file    = 10DE-0FC1
 

***************************************************************
***         Extracting with UEFIRomExtract by AndyV         ***
***************************************************************
 
Found compressed EFI ROM start at 0x4c
Input size: 118708, Output size: 238212, Scratch size: 13360
 
---------------------------------------------------------------
 
***************************************************************
***                Extracting with Python...                ***
***************************************************************
 
Mac Nvidia GOP 3730 [Feb  4 2013]_MXM
 
EFI image is NOT signed!
 
Machine Code   = x64
 
Checksum CRC32 = A2B7E7DD
 
You may have a broken EFI image!
 
PE Checksum = 42F06 (Should be 498ED). Image is most likely corrupted.
 
---------------------------------------------------------------
 
***************************************************************
***                Processing with Python...                ***
***************************************************************
 
Mac GOP support is limited! Drop your compressed GOP as mac_gop.efirom in #GOP_Files
 

Like:
changing the ID of the ROM file, ID of IFR header, (EFI image is NOT signed!), PE Checksum = 42F06 (Should be 498ED). Image is most likely corrupted
Do you know how to do that?

Guys, please show the commands for the nVidia flash.
I only worked with AMD, but never with nVidia.
Thanks.

Zitat von Sylar76 im Beitrag #936

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Please try this new one as I've updated MAC GOP UEFI to the latest version (Kepler MXM cards).

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nvflash64 -i0 --version
nvflash64 --list
nvflash64 -i0 --protectoff
nvflash64 -i0 Palit.rom -6
nvflash64 -i0 --protecton

Where -i0 is your graphics card (find out with nvflash64 --list)

nvflash last 5.620.0, 5.590.0

Zitat von antonov_063 im Beitrag #1131

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nvflash64 -i0 Palit.rom -6

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Thank you very much for developing the GOPupd tool and providing support and updates!

I tried to update the BIOS of an old Sapphire Radeon HD 5450, 512 MB DDR3 (11166-01-20R) graphics card as descbribed in this thread.

Unfortunately, when I wanted to flash the updated UEFI BIOS with AMD VBFlash 2.93, I got the error message "Cannot erase ROM".

I found out that the reason for this error might be the capacity of the BIOS flash chip, which seems to be 64 KB (STMicroelectronics M25P05/05). The old/original BIOS is 58 KB and the updated UEFI BIOS 115 KB.

Is there a solution for my problem or is the BIOS flash chip of my HD 5450 just too small in size?

I have attached both the original and the UEFI BIOS.

Zitat von SoniX im Beitrag #1132

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Zitat von antonov_063 im Beitrag #1131

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nvflash64 -i0 Palit.rom -6

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What is -6 ???

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@startergo - Sorry, I am not sure how to do all you asked, I only answered what you asked initially, which was easy as I mentioned
Change ID of ROM via hex too, and probably all else you now asked about as well, but how to do that properly for MAC/Nvidia I have no idea to help, sorry
Hopefully someone else will help you soon!

@isooox - You have to use special older GOP, you cannot update to latest version, unless @Sylar76 knows a new fix for this?
If Sylar76 says no new fixes, I will make you new BIOS with special updated but older GOP

@Lost_N_BIOS

Mate, if you know how to do it, please help @isooox as I don't know how to fix it.

@Lost_N_BIOS

That would be great.

Zitat von isooox im Beitrag #1133

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Thank you very much for developing the GOPupd tool and providing support and updates!

I tried to update the BIOS of an old Sapphire Radeon HD 5450, 512 MB DDR3 (11166-01-20R) graphics card as descbribed in this thread.

Unfortunately, when I wanted to flash the updated UEFI BIOS with AMD VBFlash 2.93, I got the error message "Cannot erase ROM".

I found out that the reason for this error might be the capacity of the BIOS flash chip, which seems to be 64 KB (STMicroelectronics M25P05/05). The old/original BIOS is 58 KB and the updated UEFI BIOS 115 KB.

Is there a solution for my problem or is the BIOS flash chip of my HD 5450 just too small in size?

I have attached both the original and the UEFI BIOS.

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@gtishtar - you need to use special sized old GOP, from lordkag method outlined here #252 - AMD and Nvidia GOP update (No requests, DIY) (17)
But yeah, this only applies if BIOS update goes over 128Kb and you need to make it smaller to fit 128kb chip, 64Kb chip it's not possible even with that method

@isooox - Please run atiflash -i & atiflash -ai
And show me the output, we need to confirm your BIOS chip actual size, or you can look in person maybe, if heastink is not in the way. If it's 128KB chip then we can do, if it's 64Kb you cannot use this method either
This method only required and helps, when chip is 128Kb and update puts it over that amount, so using this makes 104kb sized BIOS, or normal one makes the 115kb sized BIOS which you mentioned, both of those will fit 128KB chip, but not 64KB of course.
Only option if actual chip is 64Kb is to replace that chip with 128KB chip instead.

@gtishtar

Thank you for sharing your experience!

@Lost_N_BIOS

From gtishtar's report I already assumed that there is little chance to make my Sapphire Radeon HD 5450, 512 MB DDR3 (11166-01-20R) UEFI ready.

I followed your instructions and ran ATI Flash once again with the proposed parameters: atiflash -ai says that the flash type M25P05/c is just 64 KB.
Please find the other results attached.

Thank you for your effort!