I see. Indeed, my non-working nano has no visible CH340G label on the related chip! Thanks for clearing that up! Another mystery solved!

Is that then witht the others the same? Do your non-working boards have CH340 chips without official labelling?

Hi !

If you can upload it means the the driver is correct. I would look first at wiring if there is no shorts and if pins are in the correct order,look for bad solder, weak connections .... Another possibility is the lack of power preventing the Arduino to correctly start, often bad usb cables or usb hubs cope into play here. If you are using an RGB matrix, power is a huge factor and depending of your Arduino you might need to add an external power supply (it's not required most of the time, but it can happen.) : https://github.com/zegreatclan/SimHub/wiki/Arduino--Setup#powering-considerations

Nicolas

@admin5435 I got a new hypothesis:I bought the suggested Elegoo Nano v3 boards on Amazon and they work! As a user, the difference between all the boards that did not work and the one now working is the BOOTLOADER!

So all non-working boards where using OLD bootloader (in my case). The new Elegoo board uses the NEW bootloader. Could it be that the newest windows driver is not properly supporting the old bootloader anymore (or a related issue)?

For all others that faced these issues: did you exclusively have problems with devices that use the old bootloader?

If that is so, @admin5435 may this be addressed or pointed out in a simhub update, so users will know about that issue(?) Could you research if that is actually the problem?

as far as I can tell, my only issue was the other brand, and I'm pretty sure they were the older bootloader.  Definitely a windows driver thing since the old driver was working before it got auto rolled by windows update.  

If you can upload it means the the driver is correct. I would look first at wiring if there is no shorts and if pins are in the correct order,look for bad solder, weak connections .... Another possibility is the lack of power preventing the Arduino to correctly start, often bad usb cables or usb hubs cope into play here. If you are using an RGB matrix, power is a huge factor and depending of your Arduino you might need to add an external power supply (it's not required most of the time, but it can happen.) : https://github.com/zegreatclan/SimHub/wiki/Arduino--Setup#powering-considerations

Nicolas

@admin5435 I got a new hypothesis:I bought the suggested Elegoo Nano v3 boards on Amazon and they work! As a user, the difference between all the boards that did not work and the one now working is the BOOTLOADER!

So all non-working boards where using OLD bootloader (in my case). The new Elegoo board uses the NEW bootloader. Could it be that the newest windows driver is not properly supporting the old bootloader anymore (or a related issue)?

For all others that faced these issues: did you exclusively have problems with devices that use the old bootloader?

If that is so, @admin5435 may this be addressed or pointed out in a simhub update, so users will know about that issue(?) Could you research if that is actually the problem?

1. I got an Asus ROG Zephyrus Laptop with Intel 12th gen i7 12700H to which I plug in my stuff.

2. As described in device manager, the USB-Controller is a Intel USB 3.10 and 3.20 eXtensible Hostcontroller. I also got USB4 Hoster-Router (Microsoft).

How about you guys? Any commonalities?

doesnt sound like.  in fact, I have kind of the exact opposite of your setup:

Asus TUF x570 wifi mobo

Ryzin 7 5600x 

AMD 6750xt

32 gb ddr4 ram

I do use a cheap, powered usb hub as well.  the 3 or so boards that I use are all usually plugged into that, and I havent had any issues until this driver thing popped up.  I just posted one above about what brand board I used that work just fine, must be the newer version or, well I don't know.  They just work lol.  ELEGOO brand NANO boards from amazon.  3 pack is less than $20 I believe.  

1. I got an Asus ROG Zephyrus Laptop with Intel 12th gen i7 12700H to which I plug in my stuff.

2. As described in device manager, the USB-Controller is a Intel USB 3.10 and 3.20 eXtensible Hostcontroller. I also got USB4 Hoster-Router (Microsoft).

How about you guys? Any commonalities?

I did not fix it for me either.