Bricked HP Pavilion 500-010xt after BIOS FLash [Solved]

[panorain]

Hi, I flashed the BIOS on a

Code:

H-Joshua-H61-uATX (Foxconn 2ADA)

mainboard, with Board Label

Code:

PCWPA0PCY4T00k

from

Code:

JOS_815.rom v8.15

to

Code:

8.17 Rev

. Using

Code:

Windows 8.1

with the

Code:

safuwin.exe

utility in

Code:

Powershell

. Once the process completed, I powercycled the machine and entered the BIOS setup. I checked the BIOS revision version and it stated bios revision

Code:

8.17 Rev. A

(all is good I thought), then I exited the BIOS setup. Now only a blank screen is displayed with no signal at monitor.
I have tried creating a usb medium with

Code:

FAT32

filesystem and placed

Code:

JOS_817.ROM

file now renamed

Code:

AMIBOOT.ROM

at root. No boot to medium.
I have tried creating a bootable medium with

Code:

UNetbootin

containing

Code:

FreeDOS

then dropping in

Code:

safuwin.exe

along with

Code:

AMIBOOT.ROM

. The machine will not boot (screen blank).
I have tried simultaneously pressing ctrl ++ and shift ++ at boot and no luck. Is this more than BIOS set to quiet boot somehow?
What are your thoughts on how to correct this situation if possible?

[panorain]

I was able to flash the BIOS with a CH341A programmer using the flashrom program with openSUSE on my HP-Pavilion laptop.

Code:

# flashrom -p ch341a_spi -v

Code:

# flashrom -p ch341a_spi -c W25Q64JV-.Q -w JOS_817.ROM

Code:

flashrom v1.5.1 on Linux 6.13.0-1-default (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Found Winbond flash chip "W25Q64JV-.Q" (8192 kB, SPI) on ch341a_spi.
===
This flash part has status UNTESTED for operations: WP
The test status of this chip may have been updated in the latest development
version of flashrom. If you are running the latest development version,
please email a report to flashrom@flashrom.org if any of the above operations
work correctly for you with this flash chip. Please include the flashrom log
file for all operations you tested (see the man page for details), and mention
which mainboard or programmer you tested in the subject line.
You can also try to follow the instructions here:
https://www.flashrom.org/contrib_howtos/how_to_mark_chip_tested.html
Thanks for your help!
Failed to unlock flash status reg with wp support.
Reading old flash chip contents... done.
Updating flash chip contents... Erase/write done from 0 to 7fffff
Verifying flash... VERIFIED.

BIOS revision 8.17 installed :< https://ibb.co/k648DcqT
Thanks for your help!