No Device Found on Latest IDE

Official Hardware UNO Family UNO R4 WiFi
1

as title suggested.... not sure what to do.
occasionally it will upload ONCE if i restart the PC but after the first upload i get nothing.

i have tried multiple cables. cables that work with other usb devices
i have tried the double reset method
i have reinstalled the IDE and restarted
i have reinstalled the board driver in board manager

error message is:

Sketch uses 34844 bytes (13%) of program storage space. Maximum is 262144 bytes.
Global variables use 2460 bytes (7%) of dynamic memory, leaving 30308 bytes for local variables. Maximum is 32768 bytes.
Performing 1200-bps touch reset on serial port COM14
"C:\Users\cbrun\AppData\Local\Arduino15\packages\arduino\tools\bossac\1.9.1-arduino5/bossac" -d --port=COM14 -U -e -w "C:\Users\cbrun\AppData\Local\Temp\arduino\sketches\ED3765C9ADA30A68A62C0BA54395A9D4/Blink.ino.bin" -R
Set binary mode
Send auto-baud
Set binary mode
No device found on COM14
Failed uploading: uploading error: exit status 1
2

Try out these basic steps:

  1. Do complete Uninstall Arduino IDE and then re-install the Arduino IDE (use Arduino IDE 2.1.1). Make sure that you install all the dependencies that shows up after the installation. If your machine is running Windows 11, check How to Fix Arduino Problem on Windows 11 and grant the IDE admin right.

  2. Install your board's Package Core, it contains the board's driver.

  3. Use a good quality data USB cable to connect the board to the computer without anything connected or wired to the board. Do not use a charging/bad USB cable and make sure the board is directly connected to the PC.

  4. Make sure you select the board and the port it is connected to before uploading a sketch.

  5. If steps #1-4 above fail to resolve the issue, then double tap the reset button fast and check the status of the onboard "L" LED. If the onboard LED fade in and out slowly (pulsating), upload an example sketch (Blink LED) from the IDE to the board. This will Reset your board

3

Just plug out your Device from PC or laptop and re plug inn and then your issue is Solved

1 Like
4

hello
For the same reason as the questioner above, I am having difficulty using the Arduino UNO R4 WIFI board.

If you search the internet, you will find many similar problems.

There is no proper solution.

Resetting the board may also be a solution.

I don't understand why I have to go through the troublesome task of resetting the board and uploading again after uploading the sketch.

Please pay attention to the fact that you have already uploaded the sketch once, so the connection method is correct.

Arduino should not only provide a simple solution to this problem, but also correct the bug through a firmware update.

1 Like
5

Have you updated your firmware to version 0.3.0 ?
You select it from tools menu:
image

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That fixed a lot of upload issues for me.

The current IDE 2.2.1 with current board update appears to now have that as an option.
As you can see from the photos above.

6

Even if you try to update the firmware, the device cannot be found.

The board has not been powered on for more than 12 hours.

Even if connected to a different USB port, the status is the same.

image
image1280×719 82.7 KB

7

When the board is connected, the board information is read normally.

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8

@yangfra, hi!

It may help, if you install firmware 0.2.1 first.
Disconnect and reconnect USB after every firmware update.
After installing 0.2.1, update to 0.3.0 should succeed.
See also: https://forum.arduino.cc/t/arduino-uno-r4-wifi-firmware-updater/1167083/4.

9

thank you
let's try

10

It's still the same...

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All ports are normal, but the board is not working.
When uploading, the board LED status changes to bootloader mode (when the reset button is pressed twice).

Even if I try to burn the bootloader, it fails.

someone please help me

11

Sorry, it worked for me, on Windows 11.

12

Maybe for updating the bridge firmware?

13

Are you able to upload a sketch to the board?
The behaviour remains the same when you tried to remove and connect the USB again?

14

You can also try the step from this article.

1 Like
15

When I tried the instructions you provided on the same port where the error occurred, the connection failed due to the same symptoms.

I tried connecting to a different port and the firmware was updated normally.
wow!!!

Thank you so much to everyone who helped

16

Thank you for your help!

It was the information I was looking for, but many of the settings did not match, so I tried adjusting them but ultimately failed.

I finally found the answer in the link posted by JOJO below!!

But the method you suggested was also very good.

thank you!

17

This worked for me as well, Thank you !

Disconnect all the USB devices from computer. I was using DELL thunder bolt to connect my external monitors so firmware update only worked after I remove that from my laptop.