Downgrade Acer Laptop BIOS

MGB · 12 Dec 2016

Hey Guys!
A few weeks ago I updated my BIOS of acer Aspire E1-572G to the latest version 2.17.
Since then my laptop has had many problems and now I would like to downgrade to an older version.
The problem is that acer uses a utility called "InsydeFlash", this utility has a BIOS version checker and won't let me downgrade due to that it shows an error "BIOS version compare error".
Now many people found a solution to this by editing the platform.ini file and disabling BIOS version check by placing 0 in place of 1 in its flag like this :
flag=1 to flag=0
The problem is that in my case its already set to 0 and even then shows me the same error

Please tell me any possible way I can downgrade my BIOS :/
Any help would be appreciated!

bobkn · 12 Dec 2016

Are you sure that you have the correct flag?

What I see in platform.ini is (just a few lines):

[Platform_Check]
Flag=3
PlatformName1=AA

The flag should be set to zero to prevent checking.

On the other hand, the update is more than two years old. I hope that Acer wouldn't leave a defective BIOS update in place for that long.

MGB · 13 Dec 2016

Thanks for your response bobkn!

Actually the lines that I edit other than those that you have mentioned are these:

[Bios_Version_Check]
flag=1 to flag=0

But in my case the platform file already has the BIOS version checking flag set to 0 even then it shows me the same error as if editing the file didn't do anything .

The update is infact 2 years old but it might be possible that something wrong happened while I flashed (I don't really remember anything going wrong though)