Yes, you can use USB Burning Tool.
Download the Latest verison of Amlogic USB Burning Tool which helps you to flash the Stock Firmware on Mobile devices powered by Amlogic Chipset.
androidmtk.com
While connecting the tvbox to the computer you have to press the reset button that is inside the AV output. Check the video below.
So I went ahead and installed the latest "Amlogic_USB_Burning_Tool_v3.2.0" also installed a driver
The "USB Burning Tool" seems to be a one way tool for writing a firmware image to the device, it does NOT provide a function to read existing firmware from the device and create an .img file. Without a valid .img I cannot really follow the steps in the video you shared. I am equating "firmware" with all the code that's in the device and that's probably wrong. More likely I don't need to touch the firmware (code controlling the low level hardware) but instead I need *help* on how to read/backup things like vendor, user installed APKs, my custom bootanimation.zip, ... Such content is more likely located in things like /system /userdata /boot ...??? This is in order for me to replicate it onto another identical device.
See this link for details on my goals/attempts/guess work...
https://forum.xda-developers.com/t/how-to-extract-your-boot-img-from-any-rom-adb.3760210/post-86771801
I was hoping the device driver installed by "USB Burning Tool" would cause the classic audible beep in Windows11 like all other USB devices when connected to the PC, however it does NOT. The video shows holding the reset button before connecting the USB cable then releasing the reset button with no power supply or hdmi connected, does that mean power will be delivered to the PCB board via USB power. This did not cause the device to be detected by Windows11.
I have also tried the same sequence with the reset-inAV button depressed prior to connecting the cable, and the power supply connected to the TV box (normal boot).
I am familiar with the reset button for booting into the stock recovery screen however the video seems to be more about custom software "USB Burning Tool" connecting silently/privately to box PCB board.
To iterate my goal with the USB cable is to have Windows recognize the box so I can see it with "adb devices" instead of connecting over WiFi.
Thank you for your guidance.