RE: nrfjprog unable to find target

johnmartin117 — Tue, 16 Dec 2025 15:29:50 GMT

Yes it is a custom board. We didn't intentionally enable APPROTECT.

Attempted the command: "nrfutil device recover" and received the following output:

C:\Program Files (x86)\Nordic Semiconductor\nrf-command-line-tools\bin>nrfutil device recover
x Failed to recover 1050290594, Device error: Failed to write DebugPort register 0x08: Unknown Error in J-Link DLL (err
Error: One or more recover tasks failed:
* 1050290594: Device error: Failed to write DebugPort register 0x08: Unknown Error in J-Link DLL (error code =-1) (Generic)

I also ran it with debug logging turned on. Here's the output:

C:\Program Files (x86)\Nordic Semiconductor\nrf-command-line-tools\bin>nrfutil --log-level debug --log-output stdout --json-pretty device recover
{
"type": "log",
"data": {
"level": "INFO",
"message": "nrfutil (version = 8.1.1, platform = x86_64-pc-windows-msvc, classification = nrf-external) invoked with --log-level debug --log-output stdout --json-pretty device recover ",
"timestamp": "2025-12-16T15:22:36.600Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Setting environment variable NRFUTIL_EXEC_PATH to C:\\Users\\goond\\.nrfutil\\bin\\nrfutil.exe for subcommand `device`",
"timestamp": "2025-12-16T15:22:36.604Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "nrfutil-device (version = 2.8.7, platform = x86_64-pc-windows-msvc, classification = nrf-external) invoked with --json-pretty --log-level DEBUG --log-output stdout recover ",
"timestamp": "2025-12-16T15:22:36.623Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "cargo = false, force_libnrfdl_lookup = false, force_nrfutil_libdir = false",
"timestamp": "2025-12-16T15:22:36.626Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating the nrfdl context via nrfdl_create_context_with_config: Plugin location is assumed to be C:\\Users\\goond\\.nrfutil\\lib\\nrfutil-device",
"timestamp": "2025-12-16T15:22:36.630Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Loading plugins from directory C:\\Users\\goond\\.nrfutil\\lib\\nrfutil-device",
"timestamp": "2025-12-16T15:22:36.630Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.639498Z] Opened J-Link DLL at C:\\Program Files\\SEGGER\\JLink\\JLink_x64.dll with version 7.50a",
"timestamp": "2025-12-16T15:22:36.639Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Plugin BOARDCONTROLLER does not support `get_version_list`",
"timestamp": "2025-12-16T15:22:36.640Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Plugin sdfu does not support `get_version_list`",
"timestamp": "2025-12-16T15:22:36.641Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Plugin mcuBoot does not support `get_version_list`",
"timestamp": "2025-12-16T15:22:36.647Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "operation to get devices for : Ok(\"{\\\"operations\\\":[{\\\"operation\\\":{\\\"type\\\":\\\"recover\\\"},\\\"core\\\":\\\"NRFDL_DEVICE_CORE_APPLICATION\\\"}]}\")",
"timestamp": "2025-12-16T15:22:36.648Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "enumerate_devices",
"timestamp": "2025-12-16T15:22:36.649Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_0B95&PID_1790\\\\003C72D4\"",
"timestamp": "2025-12-16T15:22:36.650Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_8087&PID_0026\\\\5&7993A9C&0&10\"",
"timestamp": "2025-12-16T15:22:36.651Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_8817\\\\0000000000000001\"",
"timestamp": "2025-12-16T15:22:36.652Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_045E&PID_0990\\\\200901010001\"",
"timestamp": "2025-12-16T15:22:36.653Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_1366&PID_1061\\\\001050290594\"",
"timestamp": "2025-12-16T15:22:36.654Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_0403&PID_6001\\\\AB9M1MD5\"",
"timestamp": "2025-12-16T15:22:36.656Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_25A4&PID_9411\\\\000000000001\"",
"timestamp": "2025-12-16T15:22:36.657Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_058F&PID_8468\\\\058F84688461\"",
"timestamp": "2025-12-16T15:22:36.658Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_1D6B&PID_0104\\\\2147SBB12869\"",
"timestamp": "2025-12-16T15:22:36.665Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_05E3&PID_0616\\\\5&7993A9C&0&14\"",
"timestamp": "2025-12-16T15:22:36.666Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_0822\\\\5&11C13299&0&2\"",
"timestamp": "2025-12-16T15:22:36.667Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_0817\\\\MSFT30000000000\"",
"timestamp": "2025-12-16T15:22:36.668Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_2822\\\\5&7993A9C&0&4\"",
"timestamp": "2025-12-16T15:22:36.669Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_05E3&PID_0610\\\\5&7993A9C&0&2\"",
"timestamp": "2025-12-16T15:22:36.670Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_2817\\\\MSFT20000000000\"",
"timestamp": "2025-12-16T15:22:36.670Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_0B95&PID_1790\\\\003C72D4\"",
"timestamp": "2025-12-16T15:22:36.671Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=2 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.673Z"
}
}
{
"type": "log",
"data": {
"level": "ERROR",
"message": "Failed to read config descriptor 1: Descriptor request failed. Device might be suspended.",
"timestamp": "2025-12-16T15:22:36.673Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=2 index=2 error=31",
"timestamp": "2025-12-16T15:22:36.674Z"
}
}
{
"type": "log",
"data": {
"level": "ERROR",
"message": "Failed to read config descriptor 2: Descriptor request failed. Device might be suspended.",
"timestamp": "2025-12-16T15:22:36.674Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.681Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.682Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_8087&PID_0026\\\\5&7993A9C&0&10\"",
"timestamp": "2025-12-16T15:22:36.683Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_2109&PID_8817\\\\0000000000000001\"",
"timestamp": "2025-12-16T15:22:36.683Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.684Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.685Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_045E&PID_0990\\\\200901010001\"",
"timestamp": "2025-12-16T15:22:36.686Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.687Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=3 error=31",
"timestamp": "2025-12-16T15:22:36.687Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_1366&PID_1061\\\\001050290594\"",
"timestamp": "2025-12-16T15:22:36.688Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_0403&PID_6001\\\\AB9M1MD5\"",
"timestamp": "2025-12-16T15:22:36.690Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_25A4&PID_9411\\\\000000000001\"",
"timestamp": "2025-12-16T15:22:36.697Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.698Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.699Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_058F&PID_8468\\\\058F84688461\"",
"timestamp": "2025-12-16T15:22:36.700Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_1D6B&PID_0104\\\\2147SBB12869\"",
"timestamp": "2025-12-16T15:22:36.702Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_05E3&PID_0616\\\\5&7993A9C&0&14\"",
"timestamp": "2025-12-16T15:22:36.703Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.704Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.705Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_2109&PID_0822\\\\5&11C13299&0&2\"",
"timestamp": "2025-12-16T15:22:36.712Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_2109&PID_0817\\\\MSFT30000000000\"",
"timestamp": "2025-12-16T15:22:36.713Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_2109&PID_2822\\\\5&7993A9C&0&4\"",
"timestamp": "2025-12-16T15:22:36.715Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.715Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.716Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_05E3&PID_0610\\\\5&7993A9C&0&2\"",
"timestamp": "2025-12-16T15:22:36.717Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Creating device for \"USB\\\\VID_2109&PID_2817\\\\MSFT20000000000\"",
"timestamp": "2025-12-16T15:22:36.719Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=0 error=31",
"timestamp": "2025-12-16T15:22:36.720Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION failed: type=3 index=1 error=31",
"timestamp": "2025-12-16T15:22:36.720Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "create port for device: USB\\VID_1D6B&PID_0104&MI_04\\6&14CEC4D3&1&0004 parent: \"USB\\\\VID_1D6B&PID_0104\\\\2147SBB12869\"",
"timestamp": "2025-12-16T15:22:36.729Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "create port for device: USB\\VID_1366&PID_1061&MI_00\\7&2DFF88D5&0&0000 parent: \"USB\\\\VID_1366&PID_1061\\\\001050290594\"",
"timestamp": "2025-12-16T15:22:36.730Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "create port for device: USB\\VID_1366&PID_1061&MI_02\\7&2DFF88D5&0&0002 parent: \"USB\\\\VID_1366&PID_1061\\\\001050290594\"",
"timestamp": "2025-12-16T15:22:36.732Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "create port for device: FTDIBUS\\VID_0403+PID_6001+AB9M1MD5A\\0000 parent: \"USB\\\\VID_0403&PID_6001\\\\AB9M1MD5\"",
"timestamp": "2025-12-16T15:22:36.733Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[Serialport] found FTDI",
"timestamp": "2025-12-16T15:22:36.735Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "enumerate: Device with sn 001050290594 has board version PCA10056",
"timestamp": "2025-12-16T15:22:36.738Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.748236Z] Opened J-Link DLL at C:\\Program Files\\SEGGER\\JLink\\JLink_x64.dll with version 7.50a",
"timestamp": "2025-12-16T15:22:36.748Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.749594Z] Found 1 attached J-Link devices",
"timestamp": "2025-12-16T15:22:36.749Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "enumerate_devices finished successfully",
"timestamp": "2025-12-16T15:22:36.755Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "No serial-number or traits provided. But only one relevant device is connected. Will perform operation with Device { id: DeviceId(5), serial_number: Some(\"001050290594\"), traits: {\"nordicUsb\": false, \"jlink\": true, \"nordicDfu\": false, \"seggerUsb\": true, \"serialPorts\": true, \"mcuBoot\": false, \"usb\": true, \"broken\": false, \"boardController\": false, \"devkit\": true, \"modem\": false}, plugin_data: {\"usb\": Object {\"device\": Object {\"address\": Number(15), \"busNumber\": Number(1), \"descriptor\": Object {\"bDescriptorType\": Number(1), \"bcdDevice\": Number(256), \"idProduct\": Number(4193), \"idVendor\": Number(4966)}}, \"manufacturer\": String(\"SEGGER\"), \"osDevicePath\": String(\"\\\\\\\\?\\\\USB#VID_1366&PID_1061#001050290594#{A5DCBF10-6530-11D2-901F-00C04FB951ED}\"), \"product\": String(\"J-Link\"), \"serialNumber\": String(\"001050290594\")}, \"devkit\": Object {\"boardVersion\": String(\"PCA10056\"), \"deviceFamily\": String(\"NRF52_FAMILY\")}, \"probe\": Object {}, \"serialPorts\": Array [Object {\"comName\": String(\"COM11\"), \"manufacturer\": String(\"SEGGER\"), \"path\": String(\"\\\\\\\\?\\\\USB#VID_1366&PID_1061&MI_00#7&2DFF88D5&0&0000#{86E0D1E0-8089-11D0-9CE4-08003E301F73}\"), \"productId\": String(\"1061\"), \"serialNumber\": String(\"001050290594\"), \"vcom\": Number(0), \"vendorId\": String(\"1366\")}, Object {\"comName\": String(\"COM12\"), \"manufacturer\": String(\"SEGGER\"), \"path\": String(\"\\\\\\\\?\\\\USB#VID_1366&PID_1061&MI_02#7&2DFF88D5&0&0002#{86E0D1E0-8089-11D0-9CE4-08003E301F73}\"), \"productId\": String(\"1061\"), \"serialNumber\": String(\"001050290594\"), \"vcom\": Number(1), \"vendorId\": String(\"1366\")}]} }",
"timestamp": "2025-12-16T15:22:36.757Z"
}
}
{
"type": "task_begin",
"data": {
"task": {
"id": "b3b57265a30c479eb8f7c860448a68a1",
"description": "Recover 1050290594",
"name": "recover",
"data": {
"serialNumber": "001050290594"
}
}
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.760070Z] Checking whether operations are supported",
"timestamp": "2025-12-16T15:22:36.760Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_0B95&PID_1790\\\\003C72D4\"",
"timestamp": "2025-12-16T15:22:36.761Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_8087&PID_0026\\\\5&7993A9C&0&10\"",
"timestamp": "2025-12-16T15:22:36.762Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_8817\\\\0000000000000001\"",
"timestamp": "2025-12-16T15:22:36.763Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_045E&PID_0990\\\\200901010001\"",
"timestamp": "2025-12-16T15:22:36.763Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_1366&PID_1061\\\\001050290594\"",
"timestamp": "2025-12-16T15:22:36.764Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_0403&PID_6001\\\\AB9M1MD5\"",
"timestamp": "2025-12-16T15:22:36.765Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_25A4&PID_9411\\\\000000000001\"",
"timestamp": "2025-12-16T15:22:36.766Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_058F&PID_8468\\\\058F84688461\"",
"timestamp": "2025-12-16T15:22:36.767Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_1D6B&PID_0104\\\\2147SBB12869\"",
"timestamp": "2025-12-16T15:22:36.773Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_05E3&PID_0616\\\\5&7993A9C&0&14\"",
"timestamp": "2025-12-16T15:22:36.774Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_0822\\\\5&11C13299&0&2\"",
"timestamp": "2025-12-16T15:22:36.775Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_0817\\\\MSFT30000000000\"",
"timestamp": "2025-12-16T15:22:36.776Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_2822\\\\5&7993A9C&0&4\"",
"timestamp": "2025-12-16T15:22:36.777Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_05E3&PID_0610\\\\5&7993A9C&0&2\"",
"timestamp": "2025-12-16T15:22:36.778Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Probing device \"USB\\\\VID_2109&PID_2817\\\\MSFT20000000000\"",
"timestamp": "2025-12-16T15:22:36.778Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Waiting for async task with id 1 to complete",
"timestamp": "2025-12-16T15:22:36.779Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.779806Z] Executing operation: {\"operations\":[{\"operation\":{\"type\":\"recover\"},\"core\":\"NRFDL_DEVICE_CORE_APPLICATION\"}]}",
"timestamp": "2025-12-16T15:22:36.779Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.780937Z] Looking for file in C:\\Users\\goond\\.nrfutil\\lib\\nrfutil-device\\plugin-probe-worker.exe",
"timestamp": "2025-12-16T15:22:36.780Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.781639Z] Found file at C:\\Users\\goond\\.nrfutil\\lib\\nrfutil-device\\plugin-probe-worker.exe",
"timestamp": "2025-12-16T15:22:36.781Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.786325Z] Spawned worker process with id 2256",
"timestamp": "2025-12-16T15:22:36.786Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.799591Z] Received signal from master, returning alive worker.",
"timestamp": "2025-12-16T15:22:36.799Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.801025Z] Handshake signatures match",
"timestamp": "2025-12-16T15:22:36.801Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.801655Z] Connection with Probe worker established.",
"timestamp": "2025-12-16T15:22:36.801Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.794283Z] {jlink_usb_001050290594} nrf-probe version 0.35.0",
"timestamp": "2025-12-16T15:22:36.801Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.794317Z] {jlink_usb_001050290594} Sending IPC handshake response from worker...",
"timestamp": "2025-12-16T15:22:36.802Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.794547Z] {jlink_usb_001050290594} Started worker message processing loop",
"timestamp": "2025-12-16T15:22:36.802Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.802154Z] {jlink_usb_001050290594} Probe worker received initial message: Initialize(InitializeRequest { configuration: Configuration { jlink: JLinkConfig { dll_location: None }, target: DeviceConfig { swd_clock_frequency: None, adac_timeout: None, firmware_config: None, target_family: None, override_detection: None } } })",
"timestamp": "2025-12-16T15:22:36.803Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.807855Z] {jlink_usb_001050290594} Opened J-Link DLL at C:\\Program Files\\SEGGER\\JLink\\JLink_x64.dll with version 7.50a",
"timestamp": "2025-12-16T15:22:36.807Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.833729Z] {jlink_usb_001050290594} Speed info: JLINKARM_SPEED_INFO { SizeOfStruct: 12, BaseFreq: 128000000, MinDiv: 64, SupportAdaptive: 0 }",
"timestamp": "2025-12-16T15:22:36.833Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.833753Z] {jlink_usb_001050290594} Max frequency: 2000 kHz",
"timestamp": "2025-12-16T15:22:36.835Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.833856Z] {jlink_usb_001050290594} Clock frequency was set to 2000 kHz",
"timestamp": "2025-12-16T15:22:36.837Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.833882Z] {jlink_usb_001050290594} Emulator Usb(JLinkSerialNumber(1050290594)) running firmware: J-Link OB-nRF5340-NordicSemi compiled Feb 11 2025 17:15:35",
"timestamp": "2025-12-16T15:22:36.837Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.834003Z] {jlink_usb_001050290594} Probe worker received message: Request(Recover(Application))",
"timestamp": "2025-12-16T15:22:36.838Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.835168Z] {jlink_usb_001050290594} JLINKARM_HW_STATUS: JLINKARM_HW_STATUS { VTarget: 3300, tck: 0, tdi: 1, tdo: 1, tms: 1, tres: 1, trst: 255 }",
"timestamp": "2025-12-16T15:22:36.839Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "Waiting for async task with id 1 to complete",
"timestamp": "2025-12-16T15:22:36.881Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.936832Z] {jlink_usb_001050290594} -> Powering up sys and debug region",
"timestamp": "2025-12-16T15:22:36.936Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.938601Z] Terminating worker with id 2256",
"timestamp": "2025-12-16T15:22:36.938Z"
}
}
{
"type": "log",
"data": {
"level": "WARN",
"message": "[ProbeLib] [2025-12-16 15:22:36.937996Z] {jlink_usb_001050290594} DAP write error: DebugPort, register DapRegisterAddress(0x08) = 0x00000000, err: Unknown Error in J-Link DLL (error code =-1)",
"timestamp": "2025-12-16T15:22:36.938Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.938010Z] {jlink_usb_001050290594} Aborting debug operation, writing 0x1FF to ABORT register",
"timestamp": "2025-12-16T15:22:36.940Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.938526Z] {jlink_usb_001050290594} <- Powering up sys and debug region",
"timestamp": "2025-12-16T15:22:36.940Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.939804Z] {jlink_usb_001050290594} Probe worker received message: Shutdown",
"timestamp": "2025-12-16T15:22:36.940Z"
}
}
{
"type": "log",
"data": {
"level": "DEBUG",
"message": "[ProbeLib] [2025-12-16 15:22:36.966872Z] {jlink_usb_001050290594} Probe worker stopped.",
"timestamp": "2025-12-16T15:22:36.966Z"
}
}
{
"type": "log",
"data": {
"level": "INFO",
"message": "[ProbeLib] [2025-12-16 15:22:36.974346Z] Worker exited successfully",
"timestamp": "2025-12-16T15:22:36.974Z"
}
}
{
"type": "task_end",
"data": {
"task": {
"id": "b3b57265a30c479eb8f7c860448a68a1",
"description": "Recover 1050290594",
"name": "recover",
"data": {
"serialNumber": "001050290594"
}
},
"message": "Failed to recover 1050290594, Device error: Failed to write DebugPort register 0x08: Unknown Error in J-Link DLL (error code =-1)",
"result": "fail",
"error": {
"code": 1,
"description": "Generic"
}
}
}
Error: One or more recover tasks failed:
* 1050290594: Device error: Failed to write DebugPort register 0x08: Unknown Error in J-Link DLL (error code =-1) (Generic)