Arduino Nano USB Not Recognizing (Fix).

by Maggie Shah

211K10488

Intro: Arduino Nano USB Not Recognizing (Fix).

Arduino Nano USB Not Recognizing (Fix).

STEP 1: Arduino Nano Clones

Unfortunately an original Arduino Nano could cost you more plus shipping so it makes sense to search for an alternative source. There are also some chinese clones that are around five times cheaper, even with worldwide shipping.

But wait! There’s always a reason why a clone of something is cheaper than the original product. In this case there can be two pitfalls you need to know about.

STEP 2: Original FTDI for Data Communication

Sometimes the FTDI chip which makes the USB communication possible is a counterfeit. This could cause problems when you install the official FTDI drivers and they just refuse to work.Usually there is no bootloader on the microcontroller. You need to upload it yourself and that means you need to have an appropriate programmer on hand.

STEP 3: The Bad Part About Cheap Chinese Clones

So what makes this clone cheaper than the others? Well, most probably two things:

1.The headers are not installed.

2.It uses a different chip (CH340G) for serial-USB communication than the others.

The different serial chip on the other hand was something I was a little bit worried about but I’ve found my fears to be baseless. When I connected the board to the computer with a miniUSB cable it was instantly recognised by Windows as a virtual serial port.

STEP 4: USB Not Recognizing

STEP 5: Download Driver for CH340/CH341

The chipset used for USB-to-serial is CH340/CH341, drivers for which can be downloaded here.

http://www.wch.cn/download/CH341SER_EXE.html

STEP 6:

STEP 7: Unzip & Install the Driver

STEP 8:

DONE!!

57 Comments

Sawwler 11 months ago

this page is down, please update link for the drivers, the internet need this

DarrylB2 1 year ago

I updated the drivers but still didn't work for me. I found that by changing to the old bootlogger (tools -> processor) it worked just fine!

Leca 2 years ago

Not solved.
Arduino IDE has no port active.
My computer with Windows 10 has no USB2.0-serial.
I installed the driver but Port is still not active.

Saran1210 2 years ago

I have Arduino Nano Initial stage I can code and upload easily. I have uploaded a code more than ten times but after that, I stuck with this issue "USB is not recognized malfunctioned" and the device manager shows Unknown Device Descriptor failed I have a tried lot of permutations and combinations But I couldn't clear the problem please anyone help me from this

Thanks

slamer 3 years ago

Thank you, you solved my problem with a Nano Clone!

Saran1210 2 years ago

Please tell me how did you clear that? I have a problem it says USB is not recognized malfunctioned then in device manager it shows Unknown device descriptor failed if you come across and clear please help me......

djtimony 2 years ago

You are a genious, relatively new to Arduino, spent most of 2 nights trying to get my Surface to recognize the com port, but only when I connected the Nano, recognized the Uno just fine. Downloading the driver fixed it ... my question is how on Earth did you figure that out? Thank you, 1000x :)

teknokraze 2 years ago

Omigerd! You are a godsend from the past! I just couldn't get my computer to see the Nano as a Com Port, as you said, just wanted to install as a serial usb. Went down a huge rabbit hole of USBasp programmers, bootloader programming via R3 board, etc., nothing seemed to work...then stumbled upon this. Thank you! I even had the CH341 driver installer on my computer from another project, ready to go!

duosounds 3 years ago

thanks it has work for me .........kudos

anastasiatulin 3 years ago

Thank you, after 5 hours while I following many others ideas, I found your article and in 5 minutes works one chipper set based on arduino ESP8266 connected with windows 10 pc OS. Bravo!

garr1095 3 years ago

Awesome! After doing a lot of research that seemed just plain wrong, I found your article. This is 100% the way to solve this problem. Thank you!

TerraG2 3 years ago

You are a Godsend!

soranblue 3 years ago

Thanks, solved my issue.

dohelpinspire 3 years ago

Thank you Maggie, this just solved my problem!

lunacava 3 years ago

thank you very much !! It was vary helpful.
I had a Problem regarding not recognizing USB2.0 driver.
Worked well !!

Gopi Anil 3 years ago

I am using FTDI driver, it is working. I also tried Prolific PL2303 driver. It disappears after sometime.

proflarry 3 years ago

The other BIG issue with the CH340 clone chip is that now the counterfeit nano draws roughly 80 mA from the USB source. That compares with about 17 mA when using the real nano. Just a point. Something else that I remember from about 3 months ago when I came across this same issue -- Windows 7, 8 and 10 may have to be booted up in the no-driver-signing mode. At least, at that time, the Chinese driver wasn't signed in a way that Windows trusted.
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