While I think it's great that it worked, I'd recommend flashing with a programmer before hotswapping the bios chip.

You could work through compiling a fresh copy of coreboot on another computer, or if someone knows how to extract the bios image from an asus download you could try restoring that.

-Matt

On Tue, Apr 30, 2019 at 11:50 AM Sean Lynn Rhone <espionage724@posteo.net> wrote:
I had to do something similar with a KCMA-D8 motherboard, but I had an
old motherboard around that let me hotswap the BIOS chip, and I was
able to use flashrom from a Linux LiveUSB to flash the ASUS vendor BIOS
to the chip, while socketed in another motherboard.

After the flash, I powered off the computer, took the BIOS chip out,
tossed it into the KCMA-D8 motherboard, and was good to go.

For specific beginner-friendly steps:

1. Boot an old motherboard (something without Intel ME is more likely
to succeed; I have an AMD 700/800 Phenom II motherboard for this) with
it's BIOS chip into a Linux LiveUSB (like Lubuntu)
2. Install flashrom (apt/zypper/dnf/package manager should be fine, but
worst-case if the chip isn't recognized, you'll need to compile
flashrom from source which has additional dependencies and steps)
3. Download/copy the vendor BIOS ROM file somewhere
4. Test if flashrom can read/write to the original BIOS chip without
problem (dump the chip contents and attempt to re-write it back)
5. With the computer/motherboard still powered, remove its BIOS chip
(with usual anti-ESD measures; use a chip puller preferably but you can
also "gently" wiggle it out with your fingers)
6. Insert a different BIOS chip that you want flashed into the socket
7. Use flashrom to write to that BIOS chip (internal flash)
8. If flashrom succeeds, power off the computer/motherboard
9. Remove the flashed BIOS chip from that computer/motherboard, and
insert it into whatever other motherboard you were trying to fix
10. Re-insert the original BIOS chip into the flasher motherboard

On Tue, 2019-04-30 at 18:02 +0300, Mike Banon wrote:
> These pre-flashed BIOS chips are overpriced. You could download the
> latest BIOS from ASUS website and flash it directly to your existing
> BIOS chip using another computer and flashrom-supported hardware
> flasher.
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