I observed that I can't flash my board in VS Code when a USB-serial adapter is connected to my computer. When the adapter is unplugged everything works.
-- runners.nrfutil: Flashing file: C:\Users\Grzegorz\Documents\src\nRF52\broadcaster\build\merged.hex thread 'main' panicked at C:\Users\VssAdministrator\.cargo\git\checkouts\nrf-device-lib-cf1a63c495be42f5\936ac5a\serialport-lister\src\lib.rs:49:60: called `Option::unwrap()` on a `None` value note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace Error: Subprocess C:\ncs\toolchains\66cdf9b75e\nrfutil\home\bin\nrfutil-device.exe failed with unexpected exit code Some(101) FATAL ERROR: command exited with status 1: nrfutil --json device x-execute-batch --batch-path 'C:\Users\Grzegorz\Documents\src\nRF52\broadcaster\build\broadcaster\zephyr\generated_nrfutil_batch.json' --serial-number 1057721579
The interesing thing is that serial number is passed to nrfutil. Then why does it try to access serial port adapter instead of DK board? Another thing: in the same folder when nrfutil-device.exe is located there is also nrfutil.exe and this binary works without problems.
PS C:\Users\Grzegorz> & C:\ncs\toolchains\66cdf9b75e\nrfutil\home\bin\nrfutil-device.exe device-info
thread 'main' panicked at C:\Users\VssAdministrator\.cargo\git\checkouts\nrf-device-lib-cf1a63c495be42f5\936ac5a\serialport-lister\src\lib.rs:49:60:
called `Option::unwrap()` on a `None` value
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
PS C:\Users\Grzegorz> & C:\ncs\toolchains\66cdf9b75e\nrfutil\home\bin\nrfutil.exe device device-info
serial_number: 001057721579
boardVersion: PCA10156
deviceFamily: NRF54L_FAMILY
deviceName: nRF54L15
deviceVersion: NRF54L15_xxAA_REV2
jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Jul 8 2025 10:15:34
Simular issue can be oserved in Board Configurator:
It detects USB-serial adapter as an unknown board.
