COM3 port switches to Android ADSB Interface, sketch upload fails

Helo, I have an Arduino Nano 33 BLE Sense running on a Win10. When I try to upload an example sketch every time the COM3 port changes to an Android ADB Interface device (according to Win Device Manager) and upload fails ('No device found on COM3 / Failed uploading: uploading error: exit status 1'). Iam using IDE 2.0.1, also tried earlier versions. Having a brand new USB data cable plugged into a USB 2.0 port. CH340 driver was installed. Did a CCCleaner cleanup and removed the related AppData files. Still no progress. Does any of you have the same issue? What is this Android ADB which appears during upload?

Welcome to the forum.

That driver is not helpful. The Arduino Nano 33 BLE uses native USB and not a CH340.

Make sure you installed the Arduino driver. When you go to your Windows device manager the driver should show under COM ports or something (dependent on your language)

  • Arduino Nano 33 BLE Bootloader (COMx)
    or
  • Arduino Nano 33 BLE (COMy)

image
or (not at the same time)
image

When you click on properties of this device it should show Arduino SA in both cases.

image

You should be able to change between the two modes with single and double click of the reset button. You should hear a Windows connect sound and the device manager view should change. This should work without the IDE open.

I suspect you did not install the Arduino driver and your Windows picked something else.

Thank you for your suggestion, I had some progress.
In Win Device Manager only 'COM3' device showed up. I did update that device pointing to 'C:\Users\UserName\AppData\Local\Arduino15 '. Now have 'Arduino Nano 33 BLE (COM3)'. But it still changes to 'Android ADB' during upload -- in both modes (error message the same, but its somewhat faster now). Win connect sound can be heard after plug-in.

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