I'm having an issue while trying to install the nRF Connect vsCode extension. I assume that extension has auto board detection feature. However, on my computer, this feature does not work as expected. There is another device connected to my computer which opens a couple of virtual com ports. When I enable the nrf extension, it continuously opens and closes these com ports, making them unusable. How can I disable the auto-board-detection feature ?
Hi,
Sorry for the confusion. I've successfully installed and uploaded code to nrf54L devkit. I'm also doing development on Quectel's SoC's which connected via USB and creates seven virtual com ports for different purposes. I meant the Quectel's SoC by "another device".
The problem arises when I plug in the Quectel device while the nRF Connect extention is enabled. Once connected, extention continuously opens and closes the com ports of Quectel SoC. Since its automatically does this open/close behaviour, I've assumed that nRF connect continously search through avaiable com ports to find a nrf board.
Hi,
The problem continues even if I plug in a Nordic device. I've confirmed the open/close behaviour caused by extention since it only happens when VS Code is open and extention enabled. In this state, I cannot use the Quectel's com ports with any application. When I disable the extention, open/close behaviour immediately stops and com ports became usable.
Hi,
The command returned error. Here is the output:
PS C:\ncs\v3.1.0\zephyr\samples\basic\blinky\build\blinky> nrfutil --version
nrfutil 8.1.0 (34e21a1 2025-07-29)
commit-hash: 34e21a1552aac39ed806b758e291c32039a54754
commit-date: 2025-07-29
host: x86_64-pc-windows-msvc
build-timestamp: 2025-07-29T10:51:28.573982200Z
classification: nrf-external
PS C:\ncs\v3.1.0\zephyr\samples\basic\blinky\build\blinky> nrfutil device --hotplug
error: unexpected argument '--hotplug' found
Usage: nrfutil device [OPTIONS] [COMMAND]
For more information, try '--help'.
PS C:\ncs\v3.1.0\zephyr\samples\basic\blinky\build\blinky>
Best regards,
Emre
Hi Emre,
I have noticed that "list" was missing from suggested command. I apologize for this. Correct command is "nrfutil device list --hotplug". Is your issue reproducible using this command?
Best regards,
Dejan
Hi Dejan,
I've noticed it and tried with "list" command. It did not reproduce the issue. This command can detect the connected nrf devkit. But when I connect the Quectel device, open/close behaviour continues.
Best regards,
Emre.
Hi Emre,
Can you try to run the command shown below?
nrfutil device device-info --serial-number <SN_from_nrfutil_device_list>
Hi Dejan,
Here is the output:
PS C:\Users\A.ogur> nrfutil device list --hotplug
1057715871
Product J-Link
Board version PCA10156
Ports COM143, vcom: 0
COM142, vcom: 1
Traits jlink, devkit, usb, serialPorts, seggerUsb, boardController
Supported devices found: 1
^S
PS C:\Users\A.ogur> nrfutil device device-info --serial-number 1057715871
serial_number: 001057715871
boardVersion: PCA10156
deviceFamily: NRF54L_FAMILY
deviceName: nRF54L15
deviceVersion: NRF54L15_xxAA_REV1
jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Feb 11 2025 17:15:35
PS C:\Users\A.ogur>
Best Regards,
Emre.
Hi Dejan,
Here is the output:
PS C:\Users\A.ogur> nrfutil device list --hotplug
1057715871
Product J-Link
Board version PCA10156
Ports COM143, vcom: 0
COM142, vcom: 1
Traits jlink, devkit, usb, serialPorts, seggerUsb, boardController
Supported devices found: 1
^S
PS C:\Users\A.ogur> nrfutil device device-info --serial-number 1057715871
serial_number: 001057715871
boardVersion: PCA10156
deviceFamily: NRF54L_FAMILY
deviceName: nRF54L15
deviceVersion: NRF54L15_xxAA_REV1
jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Feb 11 2025 17:15:35
PS C:\Users\A.ogur>
Best Regards,
Emre.
Hi Emre,
Did running "nrfutil device device-info --serial-number 1057715871" also cause "..., it continuously opens and closes these com ports, making them unusable"?
Best regards,
Dejan
Hi Dejan,
The problem starts happenning as soon as I open the VS Code while the Quectel device is connected via USB. And when I disable the nRF Connect extention, it stops happening. So I can not tell you whether the problem can be created by that command or not.
Best Regards,
Emre.
Hi Emre,
dejans said:Did running "nrfutil device device-info --serial-number 1057715871" also cause "..., it continuously opens and closes these com ports, making them unusable"?
Emre Bayraktar said:The problem starts happenning as soon as I open the VS Code while the Quectel device is connected via USB. And when I disable the nRF Connect extention, it stops happening. So I can not tell you whether the problem can be created by that command or not.
What happens if you run the command (shown above) when Quectel device is not connected and you do not disable nRF Connect extension?
Best regards,
Dejan
Hi Dejan,
Nothing unexpected happens and the problem do not occur. Here is the output:
PS C:\Users\A.ogur\Desktop\kernel_07.new_hw> nrfutil device device-info --serial-number 1057715871
serial_number: 001057715871
boardVersion: PCA10156
deviceFamily: NRF54L_FAMILY
deviceName: nRF54L15
deviceVersion: NRF54L15_xxAA_REV1
jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Jul 8 2025 10:15:34
PS C:\Users\A.ogur\Desktop\kernel_07.new_hw>
Hi Emre,
Have you seen this problem previously with any other board apart from that specific Quectel device?
Can this issue be reproduced if Quectel device is not used (potentially using some other Nordic board instead)?
Best regards,
Dejan