Original BIOS FILE: global-download.acer_DOT_com/GDFiles/BIOS/BIOS/BIOS_Acer_1.12_A_A.zip?acerid=636752516469847805&Step1=NOTEBOOK&Step2=PREDATOR&Step3=PREDATOR%20G9-791&OS=ALL&LC=en&BC=ACER&SC=PA_6
*Replace ‘DOT’ with a regular dot (.)
I’ve used Phoenixtool256 to dump and edit the logo modules with the No-SLIC option enabled, and it’s done successfully.
When I click OK the system reboots and the flashing process starts, but I get this Invalid firmware image error instead.
I’ve heard that you need to edit the iscflash.dll file and I tried to do some reverse engineering on it, but I can’t get there. I have a little bit of reverse engineering knowledge, Any help?
No. This bios has a phased flashing process, which means that after launching H2OFFT in windows, it writes the file to a secure area, and only then the bios updates itself. Try using Intel Flash Programming Tool instead.
Thank you for your replay, I tried it now, first I got a backup using FPT.exe -BIOS -D BIOS_BAC.bin Then I’ve tried to flash it again with/without modification: FPT.exe -BIOS -F BIOS_BAC.bin But I got the following error: "Error 316: Protected Range Registers are currently set by BIOS, preventing flash access."
I am really new to this topic so I don’t know what is the difference between the two. But I am open to any suggestions, Thank you for helping me out <3
@w4po deleted. Download this archive containing H2OFFT and run the program. If the BIOS installation does not start, and H2OFFT closes without any message, then there is no sense to run it again. If, nevertheless, it will throw an error message, then please write what exactly it says.
Does it means your notebook cannot boot up now? I didn’t quite catch what happened.
Sorry I was typing from my phone, now I run my laptop again, let me explain what happened:
First I run the bios you sent, and the system rebooted but It just went a black screen and keyboard light on, nothing else, it kept that way for a long time, I had to disconnect the power and now it works normally.
If you mean while I was in windows after I press ok to start flashing then yes, it was strange not what the normal (original one) would do.
but other than that, I got nothing after reboot, just a black screen, and after I disconnected the power my laptop booted normally showing the logo, etc… no sign of bios update or flashing or anything.
In windows: no maybe 30-40 seconds after reboot: it was just a black screen and I let it for more than 4 minutes but eventually I force shut down the laptop
We can know for sure if you did the same thing with the latest version available 1.12, as I have 1.11 installed now, So if it changed we can know for sure it flashed successfully.
