RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Wed, 19 Nov 2025 11:01:51 GMT

For clarity - the below is the nrfutil-device.log from 2.15.2

[2025-11-19T11:00:37.079Z] [50080] INFO - [nrfutil_common::logger] nrfutil-device (version = 2.15.2, platform = x86_64-pc-windows-msvc, classification = nrf-external) invoked with list --log-level trace
[2025-11-19T11:00:37.079Z] [50080] DEBUG - [nrfutil_device] Detected that we are running through nrfutil since NRFUTIL_EXEC_PATH was set. Setting NRF_PROBE_PATH to C:\Users\matke\.nrfutil\lib\nrfutil-device
[2025-11-19T11:00:37.079Z] [50080] DEBUG - [probe] Worker timeout: None
[2025-11-19T11:00:37.079Z] [50080] TRACE - [tracing::span] new;
[2025-11-19T11:00:37.079Z] [50080] TRACE - [tracing::span::active] -> new;
[2025-11-19T11:00:37.080Z] [50080] TRACE - [jlink::backend] J-Link installation directory configured in registry: Computer\HKEY_CURRENT_USER\SOFTWARE\SEGGER\J-Link="C:\\Program Files\\SEGGER\\JLink_V886"
[2025-11-19T11:00:37.080Z] [50080] TRACE - [jlink::backend] new_from_path; dll_path="C:\\Program Files\\SEGGER\\JLink_V886\\JLink_x64.dll"
[2025-11-19T11:00:37.080Z] [50080] TRACE - [tracing::span::active] -> new_from_path;
[2025-11-19T11:00:37.083Z] [50080] INFO - [jlink::backend] Opened J-Link DLL at C:\Program Files\SEGGER\JLink_V886\JLink_x64.dll with version 8.86
[2025-11-19T11:00:37.083Z] [50080] TRACE - [tracing::span::active] <- new_from_path;
[2025-11-19T11:00:37.083Z] [50080] TRACE - [tracing::span] -- new_from_path;
[2025-11-19T11:00:37.083Z] [50080] TRACE - [tracing::span::active] <- new;
[2025-11-19T11:00:37.083Z] [50080] TRACE - [tracing::span] -- new;
[2025-11-19T11:00:37.083Z] [50080] DEBUG - [nrfdl::context] Plugin BOARDCONTROLLER does not support `get_version_list`
[2025-11-19T11:00:37.083Z] [50080] DEBUG - [nrfdl::context] Plugin SDFU-RS does not support `get_version_list`
[2025-11-19T11:00:37.083Z] [50080] DEBUG - [nrfdl::context] Plugin MCUBOOT does not support `get_version_list`
[2025-11-19T11:00:37.083Z] [50080] DEBUG - [nrfdl::device_lister] enumerate_devices
[2025-11-19T11:00:37.083Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_8087&PID_0037\\5&56B09EB&0&6"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_30C9&PID_00CA\\0001"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_1366&PID_0101\\000601003266"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_0403&PID_6001\\6&F9E795&0&4"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_1A86&PID_55D4\\5323003313"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_0FCE&PID_D1E6\\5&56B09EB&0&2"
[2025-11-19T11:00:37.084Z] [50080] DEBUG - [nusb::platform::windows_winusb::enumeration] Probing device "USB\\VID_1A86&PID_8095\\5&56B09EB&0&1"
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 4,
port_chain: [6],
vendor_id: 0x8087,
product_id: 0x0037,
device_version: 0x0000,
usb_version: 0x0200,
class: 0xE0,
subclass: 0x01,
protocol: 0x01,
speed: Some(
Full,
),
manufacturer_string: None,
product_string: None,
serial_number: None,
instance_id: "USB\\VID_8087&PID_0037\\5&56B09EB&0&6",
parent_instance_id: "USB\\ROOT_HUB30\\4&25c209ba&0&0",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(6)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS06)",
],
port_number: 6,
driver: Some(
"BTHUSB",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0xE0,
subclass: 0x01,
protocol: 0x01,
interface_string: None,
},
InterfaceInfo {
interface_number: 1,
class: 0xE0,
subclass: 0x01,
protocol: 0x01,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_8087&PID_0037\\5&56B09EB&0&6"
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nusb::platform::windows_winusb::hub] IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nrfdl_usb_platform] Failed to fetch supported languages
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 3,
port_chain: [4],
vendor_id: 0x30C9,
product_id: 0x00CA,
device_version: 0x1022,
usb_version: 0x0201,
class: 0xEF,
subclass: 0x02,
protocol: 0x01,
speed: Some(
High,
),
manufacturer_string: None,
product_string: Some(
"Integrated Camera",
),
serial_number: Some(
"0001",
),
instance_id: "USB\\VID_30C9&PID_00CA\\0001",
parent_instance_id: "USB\\ROOT_HUB30\\4&25c209ba&0&0",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(4)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS04)",
],
port_number: 4,
driver: Some(
"usbccgp",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0x0E,
subclass: 0x01,
protocol: 0x01,
interface_string: Some(
"Integrated Camera",
),
},
InterfaceInfo {
interface_number: 1,
class: 0x0E,
subclass: 0x02,
protocol: 0x01,
interface_string: None,
},
InterfaceInfo {
interface_number: 2,
class: 0x0E,
subclass: 0x01,
protocol: 0x01,
interface_string: Some(
"Integrated IR Camera",
),
},
InterfaceInfo {
interface_number: 3,
class: 0x0E,
subclass: 0x02,
protocol: 0x01,
interface_string: None,
},
InterfaceInfo {
interface_number: 4,
class: 0xFE,
subclass: 0x01,
protocol: 0x01,
interface_string: Some(
"Camera DFU Device",
),
},
],
}
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_30C9&PID_00CA\\0001"
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nusb::platform::windows_winusb::hub] IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nrfdl_usb_platform] Failed to fetch supported languages
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 6,
port_chain: [1, 3],
vendor_id: 0x1366,
product_id: 0x0101,
device_version: 0x0100,
usb_version: 0x0200,
class: 0x00,
subclass: 0x00,
protocol: 0x00,
speed: Some(
High,
),
manufacturer_string: None,
product_string: Some(
"J-Link",
),
serial_number: Some(
"000601003266",
),
instance_id: "USB\\VID_1366&PID_0101\\000601003266",
parent_instance_id: "USB\\VID_1A86&PID_8095\\5&56b09eb&0&1",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)#USB(3)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS01)#USB(3)",
],
port_number: 3,
driver: Some(
"jlink",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0xFF,
subclass: 0xFF,
protocol: 0xFF,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.085Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_1366&PID_0101\\000601003266"
[2025-11-19T11:00:37.086Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 8,
port_chain: [1, 4],
vendor_id: 0x0403,
product_id: 0x6001,
device_version: 0x0600,
usb_version: 0x0200,
class: 0x00,
subclass: 0x00,
protocol: 0x00,
speed: Some(
Full,
),
manufacturer_string: None,
product_string: Some(
"FT232R USB UART",
),
serial_number: None,
instance_id: "USB\\VID_0403&PID_6001\\6&F9E795&0&4",
parent_instance_id: "USB\\VID_1A86&PID_8095\\5&56b09eb&0&1",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)#USB(4)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS01)#USB(4)",
],
port_number: 4,
driver: Some(
"FTDIBUS",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0xFF,
subclass: 0xFF,
protocol: 0xFF,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.087Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_0403&PID_6001\\6&F9E795&0&4"
[2025-11-19T11:00:37.088Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 64,
port_chain: [1, 1],
vendor_id: 0x1A86,
product_id: 0x55D4,
device_version: 0x0443,
usb_version: 0x0110,
class: 0x02,
subclass: 0x00,
protocol: 0x00,
speed: Some(
Full,
),
manufacturer_string: None,
product_string: Some(
"USB Single Serial",
),
serial_number: Some(
"5323003313",
),
instance_id: "USB\\VID_1A86&PID_55D4\\5323003313",
parent_instance_id: "USB\\VID_1A86&PID_8095\\5&56b09eb&0&1",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)#USB(1)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS01)#USB(1)",
],
port_number: 1,
driver: Some(
"CH343SER_A64",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0x02,
subclass: 0x02,
protocol: 0x01,
interface_string: None,
},
InterfaceInfo {
interface_number: 1,
class: 0x0A,
subclass: 0x00,
protocol: 0x00,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.088Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_1A86&PID_55D4\\5323003313"
[2025-11-19T11:00:37.089Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 62,
port_chain: [2],
vendor_id: 0x0FCE,
product_id: 0xD1E6,
device_version: 0x0100,
usb_version: 0x0200,
class: 0x02,
subclass: 0x00,
protocol: 0x00,
speed: Some(
High,
),
manufacturer_string: None,
product_string: Some(
"Arc",
),
serial_number: None,
instance_id: "USB\\VID_0FCE&PID_D1E6\\5&56B09EB&0&2",
parent_instance_id: "USB\\ROOT_HUB30\\4&25c209ba&0&0",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(2)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS02)",
],
port_number: 2,
driver: Some(
"usbser",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0x02,
subclass: 0x02,
protocol: 0x00,
interface_string: None,
},
InterfaceInfo {
interface_number: 1,
class: 0x0A,
subclass: 0x00,
protocol: 0x00,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.089Z] [50080] DEBUG - [nusb::platform::windows_winusb::device] Creating device for "USB\\VID_0FCE&PID_D1E6\\5&56B09EB&0&2"
[2025-11-19T11:00:37.090Z] [50080] DEBUG - [nrfdl_usb_platform] probe device: DeviceInfo {
bus_id: "PCIROOT(0)#PCI(1400)#USBROOT(0)",
device_address: 63,
port_chain: [1],
vendor_id: 0x1A86,
product_id: 0x8095,
device_version: 0x1310,
usb_version: 0x0200,
class: 0x09,
subclass: 0x00,
protocol: 0x01,
speed: Some(
High,
),
manufacturer_string: None,
product_string: Some(
"USB Hub",
),
serial_number: None,
instance_id: "USB\\VID_1A86&PID_8095\\5&56B09EB&0&1",
parent_instance_id: "USB\\ROOT_HUB30\\4&25c209ba&0&0",
location_paths: [
"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)",
"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS01)",
],
port_number: 1,
driver: Some(
"USBHUB3",
),
interfaces: [
InterfaceInfo {
interface_number: 0,
class: 0x09,
subclass: 0x00,
protocol: 0x00,
interface_string: None,
},
],
}
[2025-11-19T11:00:37.090Z] [50080] ERROR - [nrfdl_usb_platform] Unable to convert nusb device to Usb on enumerate Error { code: Generic, message: "no usb identifier for DeviceInfo { bus_id: \"PCIROOT(0)#PCI(1400)#USBROOT(0)\", device_address: 63, port_chain: [1], vendor_id: 0x1A86, product_id: 0x8095, device_version: 0x1310, usb_version: 0x0200, class: 0x09, subclass: 0x00, protocol: 0x01, speed: Some(High), manufacturer_string: None, product_string: Some(\"USB Hub\"), serial_number: None, instance_id: \"USB\\\\VID_1A86&PID_8095\\\\5&56B09EB&0&1\", parent_instance_id: \"USB\\\\ROOT_HUB30\\\\4&25c209ba&0&0\", location_paths: [\"PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)\", \"ACPI(_SB_)#ACPI(PC00)#ACPI(XHCI)#ACPI(RHUB)#ACPI(HS01)\"], port_number: 1, driver: Some(\"USBHUB3\"), interfaces: [InterfaceInfo { interface_number: 0, class: 0x09, subclass: 0x00, protocol: 0x00, interface_string: None }] }" }
[2025-11-19T11:00:37.092Z] [50080] DEBUG - [serialport_lister::platform] create port for device: FTDIBUS\VID_0403+PID_6001+6&F9E795&0&4\0000 parent: USB\VID_0403&PID_6001\6&F9E795&0&4
[2025-11-19T11:00:37.092Z] [50080] DEBUG - [serialport_lister::platform] create port for device: USB\VID_1A86&PID_55D4\5323003313 parent: USB\VID_1A86&PID_8095\5&56B09EB&0&1
[2025-11-19T11:00:37.093Z] [50080] DEBUG - [serialport_lister::platform] create port for device: USB\VID_0FCE&PID_D1E6\5&56B09EB&0&2 parent: USB\ROOT_HUB30\4&25C209BA&0&0
[2025-11-19T11:00:37.095Z] [50080] DEBUG - [serialport_lister] found FTDI with container ID: {2016F76E-C39E-11F0-A002-E41FD5FF25D4}
[2025-11-19T11:00:37.096Z] [50080] TRACE - [boardcontroller] BoardControllerPlugin::drop - ref 0x23de3ec6910
[2025-11-19T11:00:37.096Z] [50080] TRACE - [sdfu] SdfuPlugin::drop - ref 0x23de3ecf140
[2025-11-19T11:00:37.096Z] [50080] TRACE - [mcuboot] McuBootPlugin::drop - ref 0x23de3f77940

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Einar Thorsrud — Wed, 19 Nov 2025 09:59:20 GMT

Hi Mathew Key ,

As mentioned we belive we have found the issue and a fix, but we are not sure what is happening so I wonder if you can run "nrfutil device list --log-level trace" and send us the log file from "C:\Users\<username>\.nrfutil\logs\nrfutil-device.log" afterwards?

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Einar Thorsrud — Tue, 18 Nov 2025 15:51:34 GMT

Hi Mat,

Thank you for reporting this issue. We have reproduced it and plan to have it fixed in he next version of nrfutil device.

Br,

Einar

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 05:12:11 GMT

Found the version list (nrfutil device --changelog) and have gone back through the versions.

I was wrong with 2.12.0 - I was misreading the error message of a version that wasnt available.

I now have 2.15.1 installed and thats fine. 2.15.2 crashes. Both are tested using "nrfutil device list"

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 04:39:33 GMT

2.11.0 is fine. 2.12.0 crashes. So the bug/issue was introduced sometime around then.

Happy to test with the subversions to help you find the exact version number that introduced it, but will need someone to let me know WHAT subversions there are for me to try

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 04:37:08 GMT

As a test (and following the other issue) I have manually forced "device" back to the older version of "2.7.8" as mentioned in that thread using "nrfutil install device=2.7.8 --force" and now nrfutil device list is NOT crashing

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 04:22:50 GMT

Doing the WinObj step from the other issue is showing the Otii ARC as COM5 with a symbolic link of \Device\USBSER000. So guessing that might be the error - having COM0

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 04:20:34 GMT

This is failing on two different laptops running Windows 11

RE: Issue with nRF Util crashing if I have certain device (Otii ARC) connected

Mathew Key — Tue, 18 Nov 2025 04:19:51 GMT

I have turned on the RUST_BACKTRACE and can see its complaining about "Option::unwrap on a None value"