HP Omen 16-c0950nz DAG3KRMBCD0 REV:D No video after corrupted BIOS

[GGGGame]

Board: DAG3KRMBCD0 REV: D
Model: HP Omen 16-c0950nz
Serial: 5CD151F4QW
CPU: AMD Ryzen 9 5900HX
GPU: Nvidia RTX 3070
BIOS chip: GigaDevice GD25LQ128C 1.8V 16MB
Problem: While using Ubuntu with a light program running, the screen suddenly went black. Fan speed was normal, keyboard LEDs were still on. After reboot, no video on internal or external display, not even at BIOS level.

What I tried:
Tested with single RAM sticks in both slots
Tried external monitor via HDMI
Performed IPA wash of the motherboard
Flashed official HP BIOS 088FF.bin F.27 using CH341B programmer with 1.8V adapter, Verify Success
Transferred NVRAM, serial number and DMI data from original corrupted backup to HP official file
System boots, CPU and GPU get warm, fans spin, but no video output anywhere, no capslock POST code
Current behavior: After flash, system does multiple automatic reboots as if initializing for the first time, then fans keep spinning with no video. No error codes from capslock LED.

I have the CH341B programmer and I am comfortable reflashing. Any help appreciated.

[peste]

Board: DAG3KRMBCD0 REV: D
Model: HP Omen 16-c0950nz
Serial: 5CD151F4QW
CPU: AMD Ryzen 9 5900HX
GPU: Nvidia RTX 3070
BIOS chip: GigaDevice GD25LQ128C 1.8V 16MB
Problem: While using Ubuntu with a light program running, the screen suddenly went black. Fan speed was normal, keyboard LEDs were still on. After reboot, no video on internal or external display, not even at BIOS level.

What I tried:
Tested with single RAM sticks in both slots
Tried external monitor via HDMI
Performed IPA wash of the motherboard
Flashed official HP BIOS 088FF.bin F.27 using CH341B programmer with 1.8V adapter, Verify Success
Transferred NVRAM, serial number and DMI data from original corrupted backup to HP official file
System boots, CPU and GPU get warm, fans spin, but no video output anywhere, no capslock POST code
Current behavior: After flash, system does multiple automatic reboots as if initializing for the first time, then fans keep spinning with no video. No error codes from capslock LED.

I have the CH341B programmer and I am comfortable reflashing. Any help appreciated.

post the contents of the bios chip even if it is corrupted..

[GGGGame]

post the contents of the bios chip even if it is corrupted..

Done, I've attached the original corrupted backup.

[peste]

Done, I've attached the original corrupted backup.

you have everything you need at post #2
https://www.badcaps.net/forum/troubl...os#post3210916

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

[GGGGame]

you have everything you need at post #2
https://www.badcaps.net/forum/troubl...os#post3210916

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

Thank you, but that thread is for DAG3KQMBAE REV:E which is the Intel version. My board is DAG3KRMBCD0 REV: D AMD Ryzen 9. Is that file still compatible?

I've already unsoldered the chip and flashed a bios i found online for free, but still same error, if the intel version of the bios is compatible with mine ill just try that one