UEFI OPTION ROM insert asus x555ld

[jasko_jacker]

Hi, I post in this section because I think I not request a bios dump, if I'm in error ....
In the original bios, there isn't a vbios option rom, in a dump that it work well there is a wrong vbios option rom.
At the moment I not be able to use uefi tool so I try with MMtool Aptio to replace the 10DE 1140 (nvidia 820m) with 10DE 1299 (nvidi 920m) .
The option rom is replaced but with strange result, other option rom in the list have the Vendor ID and Device id as not detected.
Obviously there is a secure problem with UEFI infact MMtool classific when I save it as unsecure. I don't know if original bios works after insert vbios.
I attach , if someone can hel me
X555LD_BAD_VBIOS.bin -> 10DE 1140 instead 10DE 1299
X555LD_ORIGINAL_NO_VBIOS -> not VBIOS

[piernov]

Re: UEFI OPTION ROM insert asus x555ld

Maybe this can help you if your issue is similar:

Had a X53SV laptop with a K53SV rev2.4 motherboard. No POST, corrupt BIOS. The dump I found for r2.4 was even worse (no power), so I used a r2.3 but it was for a different laptop (K53SM I think) which has a different GPU. Booted fine but GPU couldn't initialize under Windows, 640x480 16 colors. I downloaded the BIOS update from Asus, but Easy Flash wouldn't flash it as it was recognized as the wrong model. So I used AFUDOS 5 on a FreeDOS USB key to flash it, with parameter /X to force the flash. (and /P /N /B I think to flash bootblock/main/NVRAM). Now everything works perfectly fine.

[SMDFlea]

Re: UEFI OPTION ROM insert asus x555ld

You have the wrong bios ?

[jasko_jacker]

Re: UEFI OPTION ROM insert asus x555ld

I had already tried to do it but strange situation ; I download bios from asus and there isn't correct vbios only 820m, 10DE 1140 instead 1299 . On asus there are other model with the same PN but only one with an 5 gen cpu as mine

[SMDFlea]

Re: UEFI OPTION ROM insert asus x555ld

Ix-4xxxxU has 820M GPU and Ix-5xxxxU has 920M GPU .Which cpu do you have,if its Ix-5xxxxU try the bios from your od post https://www.badcaps.net/forum/showthread.php?t=75369

[jasko_jacker]

Re: UEFI OPTION ROM insert asus x555ld

i7 5-xxxx I tryed with bios in old post but it not work. original bios is in my first message but there isn't vbios. All files I download from asus related to this model (I try with F555LD, F555LDB, X555LD, seems to be 10DE 1140 but for example if I download another model as x556uj that has 920m , mmtool return correct pci idd.

[SMDFlea]

Re: UEFI OPTION ROM insert asus x555ld

You have wrong bios,see post 3.The X556UA has a 940M ,maybe 1299 is vendor id .

[jasko_jacker]

Re: UEFI OPTION ROM insert asus x555ld

Strange, probably someone have change it .
Vendor id is 10DE

[SMDFlea]

Re: UEFI OPTION ROM insert asus x555ld

https://devicehunt.com/search/type/p...ny/device/1140

[jasko_jacker]

Re: UEFI OPTION ROM insert asus x555ld

Finally solve but or I made a mistake or asus it's a nightmare.....
On the notebook rear label I read F555LJ on motherboar X555LD rev. 3.3 on
label near the keyboard I read F555L .
I download the bios on asus for the F555LJ and finally appears the correct PCI ID . Remain only for my knoledge how it's possible to change and validate option rom ?
Thanks

[SMDFlea]

Re: UEFI OPTION ROM insert asus x555ld

Yes, i agree asus are a nightmare .