# I can't upload the code to my Arduino Nano

**URL:** <https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301>\
**Category:** Classic Nano\
**Created:** [January 8, 2025, 11:12am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301 "2025-01-08T11:12:01Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![marcosalbetman](https://avatars.discourse-cdn.com/v4/letter/m/e8c25b/32.png) [@marcosalbetman](https://forum.arduino.cc/u/marcosalbetman)\
**Post date:** [January 8, 2025, 11:12am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/1 "2025-01-08T11:12:01Z")

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Hello There,

I am trying to run the blink LED example on my arduino nano (cloned version). The IDE that i am using is 1.8.18 running. After making the following selections:

- Board: Arduino Nano
- Port: COM24  
-Processor: ATMEGA328P(OldBootloader)

What i have done:

- Testing Port by connecting and Arduino UNO to the same COM24 and running the same code. Arduino UNO works fine.
- Using a different USBA-MicroB cable on Arduino Nano, it doesn't work

Below is the full entire output after selecting "show verbose output during upload":

`Sketch uses 924 bytes (3%) of program storage space. Maximum is 30720 bytes.  
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.  
C:\Users\M74485\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude -CC:\Users\M74485\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf -v -patmega328p -carduino -PCOM24 -b57600 -D -Uflash:w:C:\Users\M74485\AppData\Local\Temp\arduino\_build\_908543/Blink.ino.hex:i

avrdude: Version 6.3-20190619  
Copyright (c) 2000-2005 Brian Dean, [http://www.bdmicro.com/](http://www.bdmicro.com/)  
Copyright (c) 2007-2014 Joerg Wunsch

```
     System wide configuration file is "C:\Users\M74485\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"

     Using Port : COM24
     Using Programmer : arduino
     Overriding Baud Rate : 57600

```

`

I know this is a common issue that have been resplved by other members but the majority of them are fixing this issue by either:

- going backwards a version
- removing and installing again the driver

any suggest on this matter?

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**Author:** ![UKHeliBob](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ukhelibob/32/215663_2.png) [@UKHeliBob](https://forum.arduino.cc/u/UKHeliBob)\
**Post date:** [January 8, 2025, 11:31am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/2 "2025-01-08T11:31:20Z")

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Welcome to the forum

Have you tried using the ATmega328P Processor option ?

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**Author:** ![marcosalbetman](https://avatars.discourse-cdn.com/v4/letter/m/e8c25b/32.png) [@marcosalbetman](https://forum.arduino.cc/u/marcosalbetman)\
**Post date:** [January 9, 2025, 8:48am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/3 "2025-01-09T08:48:41Z")

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@UKHeliBob, thanks for your reply. I have tried both versions with the same result 🫤 .

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**Author:** ![sterretje](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/sterretje/32/391294_2.png) [@sterretje](https://forum.arduino.cc/u/sterretje)\
**Post date:** [January 9, 2025, 10:03am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/4 "2025-01-09T10:03:32Z")

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Is this the first time that you tried to program it? If not, what is the history?

What is the serial-to-usb converter on the Nano? It's the IC on the bottom of the board.

If you don't know, use windows device manager. Double click on the port, select the _Details_ tab and select _Hardware Ids_ from the _Property_ drop down.

For an official Nano with FTDI

 ![image](https://europe1.discourse-cdn.com/arduino/original/4X/c/6/0/c60faca533243d049619ba320881a3eafcae18fa.png)

For a clone with CH340

 ![image](https://europe1.discourse-cdn.com/arduino/original/4X/6/7/4/674cefcf11f7584e037ec18b166074040f147810.png)

Same question for your Uno; note that an official Uno will be different from the the above ones.

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**Author:** ![marcosalbetman](https://avatars.discourse-cdn.com/v4/letter/m/e8c25b/32.png) [@marcosalbetman](https://forum.arduino.cc/u/marcosalbetman)\
**Post date:** [January 9, 2025, 10:42am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/5 "2025-01-09T10:42:55Z")

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@sterretje No, I have programmed before, but on my personal PC, which has a different version compared to the one I am using at my workplace. Initially, this Nano was soldered onto the development board. I desoldered it from the development board as I needed something for a quick prototype. Please see below the images from device manager on the arduino nano connected to my PC.

 ![image](https://europe1.discourse-cdn.com/arduino/original/4X/7/e/1/7e13ff28ec00ae0eeb0fc99e7ae5c7ff6795114e.png)

Looking forward to your reply, Cheers 🙂

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**Author:** ![sterretje](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/sterretje/32/391294_2.png) [@sterretje](https://forum.arduino.cc/u/sterretje)\
**Post date:** [January 9, 2025, 1:32pm UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/6 "2025-01-09T13:32:56Z")

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You did not answer the question (or not explicitly) if your Uno uses the same serial-to-usb converter. If not, I doubt the Nano will be on the same COM port.

> [@marcosalbetman](#):
>
> which has a different version compared to the one I am using at my workplace

Different version of what? The driver for the CH340? The operating system? The IDE?

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**Author:** ![b-d](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/b-d/32/1100561_2.png) [@b-d](https://forum.arduino.cc/u/b-d)\
**Post date:** [March 2, 2025, 9:26am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/7 "2025-03-02T09:26:58Z")

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Hallo, versuche doch mal, den Nano in der IDE als UNO anzumelden. Das hilft, wenn der Nano einen USB-Chip "CH340C" hat.  
Viel Glück, Ben

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**Author:** ![sterretje](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/sterretje/32/391294_2.png) [@sterretje](https://forum.arduino.cc/u/sterretje)\
**Post date:** [March 2, 2025, 9:38am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/8 "2025-03-02T09:38:03Z")

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@b-d , please use the English language in the English sections of the forum.

Note that clone Nanos usually have the "old boot loader".

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [August 29, 2025, 9:38am UTC](https://forum.arduino.cc/t/i-cant-upload-the-code-to-my-arduino-nano/1340301/9 "2025-08-29T09:38:45Z")

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Closed on August 29, 2025, 9:38am UTC

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