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Topic: Have to install drivers EVERY time.... (Read 149 times) previous topic - next topic


Jun 25, 2015, 05:58 pm Last Edit: Jun 25, 2015, 06:00 pm by Michael75
Hello Arduino Community,

I am having a bit of trouble with some Arduino Nanos. When I plug them in the very first time, they are recognized and I can upload a sketch to them.

The next time I plug them in, they again try to install the proper drivers automatically, but this time fail.

At this point, I go into Device Manger, and install the FTDI drivers manually. The problem is, this installs an new COM port every time I reinstall the drivers. I'm on COM11 now, and it seems a bit ridiculous to get a new COM port for every Arduino I use.

Am I doing something wrong? My Arduino Ethernet and my Arduino Uno don't give me this problem.

Thank You,



Is that an official Arduino Nano ?
You might have a clone with a counterfeit FTDI chip.


No, they are knockoff Arduino Nanos ($9). I the cheap ones so I can put them in low cost projects. Is this a common problem? Is it fixable?


Jun 27, 2015, 03:00 am Last Edit: Jun 27, 2015, 03:03 am by Peter_n
Some drivers use the counterfeit FTDI chips, other drivers don't use them, and there was a driver that bricked the counterfeit chips. You don't want to go there, thrown them away.
Yes, it is a common problem : https://www.youtube.com/watch?v=eU66as4Bbds

Why did you pay 9 dollars ? The Nano clones are less than 3 dollars on Ebay.

The Nano clones with CH340G usb-serial chips are okay. You need to install the driver : http://www.wch.cn/download/CH341SER_EXE.html

If you really want bad quality clones, don't forget to donate : https://www.arduino.cc/en/Main/Donate

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