I need a BIOS dump for the Samsung S49CG934SU monitor

[Habble7]

The Samsung S49CG934SU monitor does not power on - no LED indicator activity and no response to power button. However, when 21V power is connected, it immediately draws 0.8A of current with no display output. The motherboard processor gets warm, and there is continuous reading activity from the W25Q128BV BIOS chip.

Suspected Cause:
I suspect the BIOS may have been corrupted during a power interruption while updating the firmware. The official website provides firmware updates, but they can only be installed via USB flash drive.

Troubleshooting Attempts:

No hardware faults were found during physical inspection

Attempted to integrate the official firmware into the original dump using ChatGPT

Achieved only temporary LED illumination (5 seconds) in a repeating cycle, which further suggests BIOS-related issues

Additional Notes:
The current symptoms indicate potential BIOS corruption rather than hardware failure. The partial response after firmware modification suggests the repair path might involve:

Finding a clean BIOS dump.

Would appreciate any advice on:

Where to obtain a verified BIOS dump for this model? Attaching the original BIOS dump from IC802 chip.

Additionally attaching:

Firmware dump from IC801 (EEPROM 24C512)

Modified BIOS generated by ChatGPT (this version successfully activated the power LED indicator)

And I also added the official firmware file

[Habble7]

I've captured a UART log from the TCON board (pin MDEBAG_TX and pin SDEBAG_TX baud rate 115200).
The board has two processors — one labeled Master (ICT_M) and the other Slave (ICT_S).
The messages are being repeated in a continuous loop.
Below are the log results:
Slave :
ERROR : FW#1_CORE0 magickey error(0x0)
BL1 EMMC FW#2 core0,1
_________________ BTA0FW DQHD(VD) _________________
Keil 5060183, Build(Apr 23 2023 14:06:03)
Multi Inferface Slave SPI Init
FW 1, CFG/MS 1
Boot GPIO CNT Over
system reset!
_____ BTA0BL1 Core[0] EMMC_____
Master:
ERROR : FW#1_CORE0 magickey error(0x0)
BL1 EMMC FW#2 core0,1
_________________ BTA0FW DQHD(VD) _________________
Keil 5060183, Build(Apr 23 2023 14:06:03)
Multi Inferface Master SPI Init
FW 1, CFG/MS 1
Boot GPIO CNT Over
system reset!
_____ BTA0BL1 Core[0] EMMC_____