Hello Tooz,
Thank you for your prompt reply. Actually, I strictly followed the videos from Edgecate. I appreciate your sharing them.
No, the boards are not dead. They simply stay in their "Red LED On" State and fan spinning @full speed, stopping a bit later (depending on the ISO image).
The real problem is that Windows does not detect either card as a peripheral or as storage ("unknown" is the one peripheral that appears on the Device Manager, image attached). I actually succeeded once with the first card so I attempted flashing (the script simply hanged waiting to "Detect a device"... so I followed your procedure and flashed a second SD card with recovery.img: no rebooting either, unfortunately).
The second card did not react even once.
I get the same behavior under Windows and Linux, however I can see some response regarding under linux using lsusb; it shows different results when using a flashed Mendel SO and the recovery.img . Under Windows your latest driver did not help either. I am out of options.
Could you please tell me where I should look for more details ? I may have missed some "default" tool chain like ADB or something else this board family requires. I can also use Wireshark or other tools. Tooz, I have to make a final decision about your board today.
On the surface, there is simply no response, as many other posts in this forum explain... really astonished of how frustrating this is. For once, I need to focus on the AI and other product aspects.
