[Problem] Bios Flashing Issue with AYANEO 2S

BIOS/UEFI Modding BIOS Modding Guides and Problems
1

Hi,

I am currently working on an AYANEO 2S. I believe the console has failed a BIOS update.
I bought a ch341a flasher.
I dumped the original BIOS file, I attached it here:

I downloaded the latest BIOS file from the AYANEO website:

and flashed it to the chip making sure to erase it first. Everything seems on go smoothly, but the console still doesn’t display anything.

My question is, does a plain file from the manufacturer website work or does it need to be edited in any way?

Thanks for everyone’s help in advance!


Edit by Fernando: Thread title customized (to make clear, that the Opener has a BIOS modding problem)

2

Unfortunately not always. There are some examples where only older stock firmware with a different structure worked out of the box (Asrock), and some AMD- machines don’t start with a complete stock firmware. Of course there’s always the possiblity that this was hardware and te machine might’ve started with a stock bios…

It’s always mentioned as anadvantage for AMD that one dosen’t have Intels ME, but for your machine you have 16 MB almost unstructured padding in the beginning (you can find the µcodes there, but this is a very small part of this area)

image
image857×255 5.39 KB

And no obvious signs of a bad update in this firmware…

You might want to try your own backup with emptied NVRAM, but I don’t think this will help you any further:
ORIGINALDUMP - Copy.zip (7.4 MB)

(Since NVRAM needs to be repopulated it could need a longer time to boot / several reboots. Don’t forget to reset CMOS memory.

3

Yes, I thought the original dump didn’t “look” corrupted. I bought the console from a person who said it failed a BIOS update and wouldn’t POST since, but as you suggest, there might be a hardware issue there.
I will try your file without the NVRAM and cross all my fingers.

Thanks for your help!