Works on Acer Nitro AN515-52

Question

Works on Acer Nitro AN515-52

JoJoDeveloping opened this issue 4 years ago · comments

Thanks for this tool!

Using this on the Asus BIOS image is a bit tricky since you have to pull a few punches to get the actual Efi image first:

Download the efi update from https://www.acer.com/ac/de/DE/content/support-product/7572
extract the .exe using 7Zip
You will find files ending in .fd. These contain the efi. IDK why there are two
run binwalk -dd ".*" on both
binwalk will find another "Microsoft executable, portable (PE)" around ~0x5300
that is the actual file you need to pass to VBiosFinder

Output:

$ ./vbiosfinder extract $(pwd)/53d8_f0.exe
output will be stored in '/mnt/workfs/johannes/randomstuff/bios/VBiosFinder/tmp-vbiosfinder'
checking for ruby... yes

checking for innoextract... no
Install 'innoextract' on your system (required for Inno Installers)
checking for upx... no
Install 'upx' on your system (required for UPX executables)
checking for 7z... yes
trying to extract ./53d8_f0.exe
extracting uefi data
trying to extract ./53d8_f0.exe
found UEFIExtract archive
trying to extract ./mkmf.log
found UEFIExtract archive
filtering for modules...
got 4537 modules
finding vbios
7 possible candidates
checking for rom-parser... yes
Found VBIOS for device 8086:0406!
Found VBIOS for device 8086:0406!
Found VBIOS for device 8086:0406!
Found VBIOS for device 10de:1c8c!
Found VBIOS for device 10de:1c8d!
Found VBIOS for device 10de:1c20!
Found VBIOS for device 10de:1c20!
Job done. Extracted files can be found in /mnt/workfs/johannes/randomstuff/bios/VBiosFinder/tmp-vbiosfinder/../output

I extracted both BIOSes found in the update, the files are identical.
Also issue #20 is present here.

DarKWinGTM commented 4 years ago

Please.

DarKWinGTM · Answer 1 · Wed Nov 04 2020 03:58:22 GMT+0800 (China Standard Time)

I need help, can you upload rom "Found VBIOS for device 10de:1c8c!" ?. I need this rom.

Johannes Hostert · Answer 2 · Wed Nov 04 2020 04:57:59 GMT+0800 (China Standard Time)

I need help, can you upload rom "Found VBIOS for device 10de:1c8c!" ?. I need this rom.

Sure, here you go.

vbios_10de_1c8c.rom.zip

DarKWinGTM · Answer 3 · Wed Nov 04 2020 17:55:23 GMT+0800 (China Standard Time)

Thanks alot bro.

DarKWinGTM · Answer 4 · Wed Nov 04 2020 18:31:26 GMT+0800 (China Standard Time)

I can't patch vBIOS can you help me ?, How i can get this pFlash

/opt/edk2/Build/OvmfX64/DEBUG_GCC5/FV/OVMF_CODE.fd

I want OVMF_CODE.fd file patched. I try to follow this guide.
https://lantian.pub/en/article/modify-computer/laptop-intel-nvidia-optimus-passthrough.lantian/

My os is Ubuntu 20.04 LTS

DarKWinGTM · Answer 5 · Wed Nov 04 2020 18:32:25 GMT+0800 (China Standard Time)

I need OVMF_CODE.fd already patched from this vBios.

Nathoufresh · Answer 6 · Tue Jan 12 2021 20:52:48 GMT+0800 (China Standard Time)

Hi would you mind sharing 1c8d rom? :)

Johannes Hostert · Answer 7 · Tue Jan 12 2021 21:56:43 GMT+0800 (China Standard Time)

Hi would you mind sharing 1c8d rom? :)

Here you go
vbios_10de_1c8d.rom.zip

Mara Robin B. · Answer 8 · Mon Feb 15 2021 05:44:39 GMT+0800 (China Standard Time)

Thanks for the binwalk hint, I'm gonna look into adding automation of this.