Toshiba 65QA4C63DG 17MB170E - solid red LED, need 10104693 eMMC dump

Hello,

I am looking for the exact original USB recovery firmware, MstarUpgrade.bin,
or a verified full eMMC dump for this television:

Brand / Model: Toshiba 65QA4C63DG
Product Code: 10104693
Production Variant: 2201
Serial Number: 1060923 200062
Mainboard: Vestel 17MB170E, PCB revision 070720R2
Panel: VES650QNTL-P2-Z01
LCD: LG LC650EQQUB-F70(SM)(A3)
Panel Vestel Code: 23796681
Region: EU
Operating System: Android TV

Fault:
When AC power is connected, the LED flashes green for less than one second
and then remains solid red. The television does not respond to the remote
control or the physical joystick. There is no boot logo, backlight or sound.

I need one of the following, specifically matching Product Code 10104693
and panel VES650QNTL-P2-Z01:

1. upgrade_loader.pkg
2. upgrade_loader_no_tvcertificate.pkg
3. MstarUpgrade.bin for M-Boot recovery
4. Verified full eMMC dump
5. A safe read-only USB or UART diagnostic method to confirm whether
M-Boot can detect and read the eMMC
6. UART / service test-point pinout for the 17MB170E 070720R2 board

Please do not send a generic 17MB170E firmware or firmware for Product
Code 10132711, because this television is the 10104693 / 2201 variant.

I can provide photographs of the rear label, mainboard and panel label.

Thank you.