Arduino NANO ( Clone with CH340 )

bricbric · April 27, 2025, 8:50pm

Since more or less 6 month we ( me or friend ) get some trouble with arduino Clone with CH340 chip

It will be impossible to connect to AGIO and also impossible to upload sketch in arduino IDE
but in serial monitor of arduino IDE we can see some message

AGIO message

I dont know the situation but it looks like “a upgrade of Windows” create this trouble

First the most easy way is to use an official Arduino NANO

a second solution ( thta i can garanty) is to remove all drivers from the device manager

uninstall and suppr the drivers

and reinstall old driver 2023
Windows-CH340-Driver.zip (144,5 Ko)

If other technic exist please share it to solve this boring situation

del_boy · April 27, 2025, 8:55pm

I had similar trouble with a nano copy. I cant quite remember but when you go to the ‘tool’ in arduino ide to upload sketch i think i had to select ‘old bootloader’ perhaps or something like that. I also slowed the speed down aswell.
I did manage to get 2 nano copies to upload a machine module sketch and connect to agopen and work but took alot of work.
Its sooooo much easier to buy the genuine nano, they upload 1st time every time

Larsvest · April 27, 2025, 11:08pm

There are known issues with China clones.
Old bootloader often works!
Here’s 5 other solutions.
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://m.youtube.com/watch%3Fv%3DYBXGvrnQzOg%26pp%3DygULIzB4MzM2MjAwMTY%253D&ved=2ahUKEwj0yr7gqPmMAxUlBdsEHZfnEzEQwqsBegQIExAF&sqi=2&usg=AOvVaw08jk9-Xzuq3mPu4I2h22rY

Or as suggested in this Arduino thread use another Arduino name.