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Topic: Arduino nano becomes dead after one upload?!?!? (Read 2044 times) previous topic - next topic

shayo

Hi All,

I've been using Arduinos for a couple of years now (Uno, Due, Nano,...).
I recently got two new Arduino Nano V3 from SainSmart (via Amazon).
I hooked them to the computer, and everything seemed to be working fine on the first connection.
The computer recognized the device and I was able to upload a simple program to the device.
However, when I attempted to upload another program, I suddenly got the avr_dude sync error.
I unplugged the device and plugged it back to the computer, and since then, the computer refuses to recognize the device.
Under device manager, I see under "Other Devices", "FT232R USB UART". All attempts to update the driver to the latest FTDI drivers fail ("Windows was unable to install your FT232R USB UART"). This was replicated on two computers (windows 7, 8.1, both x64, and both are able to recognize other arduinos, like my Due).
I have the suspicion that something got damaged during the first connection to the computer, but I have no way to know for sure.
This exact scenario was replicated with the second Nano I got. First time I connected it, everything worked. All subsequent attempts to connect to the device fail.

No wires were connected to the arduino, so this can't be some short-circuit problem. The same USB cable works with my Due, so it isn't a cable problem.

Does anyone has any idea why this might be happening?

Thanks!

Shay

highflier

http://forum.arduino.cc/index.php?topic=270176.0

I am searching and searching and my guess is the driver has some sort of Oct 1 time bomb in it...

Could it be a clone killer :(

I am tempted to setup a new computer... back date it to last month.. install nano stuff.. And then see if clones work. It appears that once the driver fails on some units  but not others.


Highflier

shayo

Interesting. It is good to know I'm not the only one who experienced this problem.
I wrote to SainSmart. Let's see what they say. I hope they can reproduce the problem on their side as well.
If you have time to test the Oct 1st hypothesis, it would be great.
Were your boards also manufactured by SainSmart, or by other third party company?

Shay

highflier

I have nano's from a few sources.  The ones with a red Power LED are still working.  The ones I have with a Green power LED are the ones with no driver errors.

At least I know which is which.

Let me know what sainsmart says.

Highflier

shayo

Can you let us know which manufacturer made the ones that still work?

highflier

Ntt really but I have a few more on order if they work... I will post ebay link.

shayo

Solved. Look here: http://forum.arduino.cc/index.php?PHPSESSID=a9b87r0aqd718ktgkmv6rfpb23&topic=270175.15
Modify the driver files. Seems like the FTDI chip is not original in these devices.

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