Need Help or Tips to unlock Insyde H20 EFI 5.0 Bios for my Acer B115-M

[klaus.willson]

Hello BIOS Modder Team,

I'm trying to unlock the hidden menue pages on my acer travelmate b115-M bios
"It's an Insyde H20 EFI 5.0 Bios" an i try to unlock by the "bootx64.efi usb
boot" that i see in this tutorial
https://www.youtube.com/watch?v=7SkBFkzOW0A


So my first step ist to dump my bios with the "unversal bios dumper " without any error
second i use the "phoenix/dell/efi slic mod" tool to extract the bios dump and last i use the
uefidump.pl to extract the bios menu entrys to find the hidden menues id's.
But nothing extracted rom file with uefidump.pl occured an message "IFR_Package_SIG not found Exiting Programm..."

So i think the bios dump from the unversal bios dump tool is wrong and im
search on the acer side for my model for bios updates i'm was lucky because
in the last days... a new bios update was release from v1.04 to v.16 and i'm download
the tool. so i extract the patcher with 7z and modify the platform.ini file to dump
a backup ... but i does not work an the patcher say "No New Version" so i become
no dump.
The Link to new Bios v1.16 is
http://global-download.acer.com/GDFiles/...4381958793

The next im looking for the current new bios dump in the "ZHJB_116.exe" file from acer
but no new bios file with ending .fd or .bin is included?
I wonder me an try to flash to new version ...it works the new bios was flashed without
to see the bios in the flash file i think it's packed or encrypted in other files

So i have a new Bios from v1.04 to v.16 but also wihtout hidden menues.

So i try the next step and direct load the "ZHJB_116.exe" file from acer's bios update in "phoenix" tool
... and im lucky the tool find the Acer Bios and also extract the rom dumps. So i also use uefidump.pl
on every *.rom file but the same error occured. "IFR_Package_SIG not found Exiting Programm..."

And now im at the end I do not know anymore.
Somehow everything is different than i see in tutorials in videos or post/blogs in the web

Do you have an idea or a few tips as I continue come to the hidden menus in my bios?

Here ist Link from the curren Bios File from Acer Side
http://global-download.acer.com/GDFiles/...4381958793

Thanks for your help and greetings

[bot47]

Hi Klaus,

I also got a B115-M and it certainly got an Advanced as well as a Power menu. I was also able to extract the ROM file and find the right module. Unfortunately I'm stuck there. I have no experience in modifying UEFI-Binaries and I don't want to brick the device myself. It seems to be disabled by hardcoding an "suppress if true", so a one-byte-patch should be enough, but I'm certain that this will break some signatures. Actually, it has a LOT of hardcoded disabled settings.

The module of interest is FABDD96B-2DDD-4747-9612-F9E777C84A38, the raw UEFI-Update is https://dl.dropboxusercontent.com/u/3849820/isflash.bin

I'm looking forward to hear something from a more experienced user.

[MarcoMjet]

nothing.... for now