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first-time builder here. I just got my Arduino Nano Every in the mail from Mouser, and I'm trying to upload a modified version of the blink example to my new brand-new board. However, every time I try to upload a sketch, the IDE just spins its wheels for around 5 minutes before giving up. I've been trying to look through similar questions and haven't found anything that has solved my issue. My OS is Windows 10.

Here's a snippet of the log (I've turned on verbose reporting for compilation and upload):

Arduino: 1.8.13 (Windows 10), Board: "Arduino Nano Every, None (ATMEGA4809)"
…
Forcing reset using 1200bps open/close on port COM1
…
         Using Port                    : COM1
         Using Programmer              : jtag2updi
         Overriding Baud Rate          : 115200
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
avrdude: jtagmkII_getsync(): sign-on command: status -1
An error occurred while uploading the sketch

Here are the settings I'm currently using:

  • Board is set to Arduino Nano Every, using Arduino MegaAVR Boards 1.8.6
  • Registers emulation: none (ATMEGA4809)
  • Port: COM1 (there are no other options that appear for me, and no other port pops up in the device manager when I plug the board in)
  • Programmer: Onboard Atmel mEDBG (UNO WiFi Rev2)

Here's what I've tried so far:

  • Disabled antivirus
  • Uninstalled and reinstalled Arduino IDE
  • Turning on registers emulation
  • Restarting computer
  • Resetting board
  • Using different USB cables
  • Using different USB ports (3.0 and 2.0)
  • Manually installing Arduino drivers to Windows (Windows said the most up-to-date drivers were already installed after I specified the directory to search in)
  • Nothing is connected to the board.
  • The pin-13 LED blinks, so there's a bootloader on the board.
  • I've reset the board before uploading.

Any help would be very much appreciated. I'm about to give up and just return the board and swap it for a different one.

  • see in Device Manager the USB devices and the COM ports if the descriptions match. did you try a different USB cable? – Juraj Sep 16 at 19:24
  • @Juraj I'm not sure what you mean by whether the USB devices and COM ports match; their names, descriptions under "details" tab, and location are all different. I've tried two different cables, yes. – Kronimiciad Sep 16 at 19:31
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    that programmer selection is ignored for Serial upload. the upload output in Question is right for Every. COM1 is no the Every. look in Device Manager for unknown USB devices – Juraj Sep 17 at 5:00
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    I've already done that. When I uninstalled the arduino IDE I uninstalled all associated files, including board packages. – Kronimiciad Sep 17 at 17:29
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    I'm aware of that. I manually deleted all Arduino files everywhere I found them on my computer; original installation, documents library, and appdata. – Kronimiciad Sep 18 at 18:37
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Here is a trick I use on some boards but first be the baud rate is the same in the terminal as in the sketch (Serial.begin(115200). If so then remove everything then put a jumper between ground and reset. Then put a jumper between TX and RX (pin o and pin 1 on uno). launch the IDE and what you type in the console should be echoed back to you. If this works the hardware is connected fine.

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