nrfutil cannot recognize J-Link, preventing flashing with nrfutil and preventing VS Code from recognizing the device.

[zero]

Dear Support Team,
I have downloaded the latest version of VS Code;

I have also installed the latest version of the nRF Connect for VS Code Extension Pack;

The J-Link version is v8.78;
The SDK and toolchain are v3.1.1;
However, the nRF54L15-DK device is not displayed under CONNECTED DEVICES in VS Code (I have verified that the development board is functioning correctly).

Below are the nrfutil log and the vs code nrf-connect-support-20251204030657.jsnoc file. Please help analyze the cause. Thank you.

0447.logs.zip

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// If you do not want others to see this information, make sure to remove it before sharing the data.

// For help and support, visit Nordic Semiconductor's DevZone at https://devzone.nordicsemi.com/.

{
  "platform": {
    "os": "win32",
    "osVersion": "Windows 10 Enterprise LTSC 2019",
    "osKernel": "10.0.17763",
    "vscode": "1.106.3",
    "electron": "37.7.0",
    "node": "v22.20.0",
    "appName": "Visual Studio Code",
    "appHost": "desktop"
  },
  "system": {
    "date": "2025-12-04T03:06:57.593Z",
    "vscodeRoot": "d:\\AppData\\Local\\Programs\\Microsoft VS Code\\resources\\app",
    "nrfConnectForDesktopInstalled": true,
    "vscodeUptime": "00:03:45",
    "osUptime": "74:35:27",
    "cpu": "Intel(R) Xeon(R) Gold 6246R CPU @ 3.40GHz"
  },
  "workspace": {
    "name": "无标题 (工作区)",
    "workspaceFile": "1764749064613",
    "folders": [
      "d:\\nordic\\myApps\\hello_world",
      "d:\\ncs\\nrf-bm\\v0.9.0"
    ]
  },
  "sdks": [
    {
      "version": "v3.1.1",
      "path": "d:\\ncs\\v3.1.1"
    },
    {
      "version": "v0.9.0",
      "path": "d:\\ncs\\nrf-bm\\v0.9.0"
    }
  ],
  "activeBuild": "/nordic/myApps/hello_world/build/hello_world",
  "apps": [
    {
      "workspace": "d:\\nordic\\myApps\\hello_world",
      "uri": "d:\\nordic\\myApps\\hello_world",
      "buildConfigurations": [
        {
          "id": "/nordic/myApps/hello_world/build",
          "name": "build",
          "boardId": "nrf52840dk/nrf52840",
          "type": "Sysbuild",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "d:\\ncs\\v3.1.1",
          "toolchain": "nRF Connect SDK Toolchain v3.1.1"
        },
        {
          "id": "/nordic/myApps/hello_world/build/hello_world",
          "name": "build/hello_world",
          "boardId": "nrf52840dk/nrf52840",
          "type": "Zephyr",
          "isChild": true,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "d:\\ncs\\v3.1.1",
          "toolchain": "nRF Connect SDK Toolchain v3.1.1"
        }
      ]
    },
    {
      "workspace": "d:\\ncs\\nrf-bm\\v0.9.0",
      "uri": "d:\\ncs\\nrf-bm\\v0.9.0\\nrf-bm\\samples\\peripherals\\uarte",
      "buildConfigurations": [
        {
          "id": "/ncs/nrf-bm/v0.9.0/nrf-bm/samples/peripherals/uarte/build",
          "name": "build",
          "boardId": "bm_nrf54l15dk/nrf54l15/cpuapp/s115_softdevice",
          "type": "Sysbuild",
          "isChild": false,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "d:\\ncs\\nrf-bm\\v0.9.0",
          "toolchain": "nRF Connect SDK Toolchain v3.1.0"
        },
        {
          "id": "/ncs/nrf-bm/v0.9.0/nrf-bm/samples/peripherals/uarte/build/uarte",
          "name": "build/uarte",
          "boardId": "bm_nrf54l15dk/nrf54l15/cpuapp/s115_softdevice",
          "type": "Zephyr",
          "isChild": true,
          "isStale": false,
          "taskBindings": {
            "build": [],
            "pristineBuild": [],
            "flash": [],
            "eraseAndFlash": []
          },
          "sdk": "d:\\ncs\\nrf-bm\\v0.9.0",
          "toolchain": "nRF Connect SDK Toolchain v3.1.0"
        }
      ]
    }
  ],
  "toolchains": [
    {
      "version": "3.1.1",
      "path": "d:\\ncs\\toolchains\\c1a76fddb2",
      "displayName": "nRF Connect SDK Toolchain v3.1.1",
      "compilerTools": [
        "Zephyr SDK (arm) 0.17.0",
        "Zephyr SDK (riscv) 0.17.0"
      ]
    },
    {
      "version": "3.1.0",
      "path": "d:\\ncs\\toolchains\\b8b84efebd",
      "displayName": "nRF Connect SDK Toolchain v3.1.0",
      "compilerTools": [
        "Zephyr SDK (arm) 0.17.0",
        "Zephyr SDK (riscv) 0.17.0"
      ]
    }
  ],
  "connectedDevices": [],
  "tools": {
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin\\arm-zephyr-eabi-gcc.exe": "0.17.0",
    "D:\\Program Files\\SEGGER\\JLink_V876\\JLink.exe": "8.76",
    "D:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\nrfjprog.exe": "10.24.2",
    "D:\\ncs\\toolchains\\c1a76fddb2\\nrfutil": "8.1.1",
    "D:\\ncs\\toolchains\\c1a76fddb2\\cmake": "3.21.0",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\Scripts\\west.exe": "1.4.0",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\python.exe": "3.12.4",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\ninja.exe": "1.10.2",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\gperf.exe": "3.1",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\dtc.exe": "1.4.7",
    "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\gn.exe": "2223",
    "D:\\ncs\\toolchains\\c1a76fddb2\\mingw64\\bin\\git.exe": "git version 2.37.3.",
    "debugger (arm)": "d:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin\\arm-zephyr-eabi-gdb.exe",
    "debugger (riscv)": "d:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk\\riscv64-zephyr-elf\\bin\\riscv64-zephyr-elf-gdb.exe"
  },
  "nrfutil": {
    "nrfutil-device": {
      "version": "2.13.1",
      "binPath": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.9.798-win32-x64\\platform\\nrfutil\\bin\\nrfutil-device",
      "jlinkInfo": {
        "description": "This version of SEGGER J-Link is different from the J-Link version that was used to test nrfutil device commands",
        "expectedVersion": {
          "version": "JLink_V8.60",
          "versionFormat": "string"
        },
        "name": "JlinkARM",
        "version": "JLink_V8.76",
        "versionFormat": "string"
      }
    },
    "nrfutil-sdk-manager": {
      "version": "1.6.2",
      "binPath": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.9.798-win32-x64\\platform\\nrfutil\\bin\\nrfutil-sdk-manager"
    }
  },
  "environment": {
    "westEnv": {
      "HOME": "C:\\Users\\S1154869",
      "HOMEDRIVE": "C:",
      "HOMEPATH": "\\Users\\S1154869",
      "PATH": "D:\\ncs\\toolchains\\c1a76fddb2;D:\\ncs\\toolchains\\c1a76fddb2\\mingw64\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\Scripts;d:/ncs/toolchains/c1a76fddb2\\opt/nanopb/generator-bin;D:\\ncs\\toolchains\\c1a76fddb2\\nrfutil\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk\\arm-zephyr-eabi\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk\\riscv64-zephyr-elf\\bin;c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.9.798-win32-x64\\platform\\nrfutil\\lib\\nrfutil-sdk-manager;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\unify_builder;C:\\Users\\S1154869\\.eide\\bin\\builder\\utils;C:\\Users\\S1154869\\.eide\\bin\\scripts;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\7z;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\utils;.;C:\\Users\\S1154869\\.eide\\bin\\builder\\msys\\bin;D:\\Program Files\\Python313\\Scripts\\;D:\\Program Files\\Python313\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Citrix\\HDX\\bin\\;C:\\Program Files\\Citrix\\HDX\\bin\\;D:\\Program Files\\TortoiseSVN\\bin;D:\\Program Files\\mingw64\\bin;C:\\Program Files\\dotnet\\;C:\\Program Files\\TortoiseGit\\bin;D:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\;C:\\Users\\S1154869\\AppData\\Local\\Microsoft\\WindowsApps;D:\\AppData\\Local\\Programs\\Git\\cmd;D:\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;D:\\DevTools;",
      "ZEPHYR_BASE": "d:\\ncs\\v3.1.1\\zephyr",
      "ZEPHYR_TOOLCHAIN_VARIANT": "zephyr",
      "ZEPHYR_SDK_INSTALL_DIR": "d:\\ncs\\toolchains\\c1a76fddb2\\opt\\zephyr-sdk",
      "PYTHONPATH": "D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\Lib;D:\\ncs\\toolchains\\c1a76fddb2\\opt\\bin\\Lib\\site-packages"
    },
    "inherited": {
      "HOME": "C:\\Users\\S1154869",
      "HOMEDRIVE": "C:",
      "HOMEPATH": "\\Users\\S1154869",
      "Path": "c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\unify_builder;C:\\Users\\S1154869\\.eide\\bin\\builder\\utils;C:\\Users\\S1154869\\.eide\\bin\\scripts;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\7z;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\utils;.;C:\\Users\\S1154869\\.eide\\bin\\builder\\msys\\bin;D:\\Program Files\\Python313\\Scripts\\;D:\\Program Files\\Python313\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Citrix\\HDX\\bin\\;C:\\Program Files\\Citrix\\HDX\\bin\\;D:\\Program Files\\TortoiseSVN\\bin;D:\\Program Files\\mingw64\\bin;C:\\Program Files\\dotnet\\;C:\\Program Files\\TortoiseGit\\bin;D:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\;C:\\Users\\S1154869\\AppData\\Local\\Microsoft\\WindowsApps;D:\\AppData\\Local\\Programs\\Git\\cmd;D:\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;D:\\DevTools;",
      "PATH": "c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\unify_builder;C:\\Users\\S1154869\\.eide\\bin\\builder\\utils;C:\\Users\\S1154869\\.eide\\bin\\scripts;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\7z;c:\\Users\\S1154869\\.vscode\\extensions\\cl.eide-3.26.1\\res\\tools\\win32\\utils;.;C:\\Users\\S1154869\\.eide\\bin\\builder\\msys\\bin;D:\\Program Files\\Python313\\Scripts\\;D:\\Program Files\\Python313\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Citrix\\HDX\\bin\\;C:\\Program Files\\Citrix\\HDX\\bin\\;D:\\Program Files\\TortoiseSVN\\bin;D:\\Program Files\\mingw64\\bin;C:\\Program Files\\dotnet\\;C:\\Program Files\\TortoiseGit\\bin;D:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\;C:\\Users\\S1154869\\AppData\\Local\\Microsoft\\WindowsApps;D:\\AppData\\Local\\Programs\\Git\\cmd;D:\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;D:\\DevTools;"
    }
  },
  "terminal": {
    "defaultProfile": null
  },
  "config": {
    "nordic-semiconductor.nrf-connect": {
      "ozonePath": "",
      "applications": [
        "d:\\ncs\\nrf-bm\\v0.9.0\\nrf-bm\\samples\\peripherals\\uarte"
      ],
      "applicationOptions": {},
      "kconfig": {
        "interface": "kconfig"
      },
      "west": {
        "env": {
          "$base": "terminal"
        }
      },
      "boardRoots": [],
      "taskBindings": {},
      "debugging": {
        "flash": true,
        "bindings": {},
        "justMyCode": false
      },
      "activeAppFollowActiveEditor": true,
      "flash": {
        "softreset": false,
        "erase": false,
        "recover": false
      },
      "enableTelemetry": false,
      "thirdpartyIntegration": {},
      "toolchainManager": {
        "indexURL": null,
        "installDirectory": "D:\\ncs"
      },
      "nrfutil": {
        "home": null
      },
      "defaultOpenAction": "ask",
      "terminalProfile": {
        "shell": null
      }
    },
    "nordic-semiconductor.nrf-terminal": {
      "terminalMode": "character",
      "localEcho": false
    },
    "marus25.cortex-debug": {
      "variableUseNaturalFormat": true,
      "liveWatchRefreshRate": "300",
      "armToolchainPath": null,
      "armToolchainPrefix": "arm-none-eabi",
      "gdbPath": null,
      "objdumpPath": null,
      "JLinkGDBServerPath": null,
      "openocdPath": null,
      "pyocdPath": null,
      "PEGDBServerPath": null,
      "stutilPath": null,
      "stlinkPath": null,
      "stm32cubeprogrammer": null,
      "enableTelemetry": true,
      "dbgServerLogfile": null
    }
  },
  "extensions": {
    "internal": {
      "nordic-semiconductor.nrf-connect": {
        "version": "2025.9.798",
        "path": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-connect-2025.9.798-win32-x64",
        "isActive": true
      },
      "nordic-semiconductor.nrf-terminal": {
        "version": "2025.8.103",
        "path": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-terminal-2025.8.103",
        "isActive": true
      },
      "nordic-semiconductor.nrf-devicetree": {
        "version": "2025.8.140",
        "path": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-devicetree-2025.8.140",
        "isActive": true
      },
      "nordic-semiconductor.nrf-kconfig": {
        "version": "2025.9.123",
        "path": "c:\\Users\\S1154869\\.vscode\\extensions\\nordic-semiconductor.nrf-kconfig-2025.9.123",
        "isActive": true
      }
    },
    "external": {
      "marus25.cortex-debug": "1.12.1",
      "ms-vscode.cpptools": "1.28.3",
      "ms-vscode.js-debug": "1.105.0",
      "ms-vscode.js-debug-companion": "1.1.3",
      "ms-vscode.vscode-js-profile-table": "1.0.10",
      "cl.eide": "3.26.1",
      "mcu-debug.debug-tracker-vscode": "0.0.15",
      "mcu-debug.memory-view": "0.0.28",
      "mcu-debug.peripheral-viewer": "1.6.0",
      "mcu-debug.rtos-views": "0.0.12",
      "mhutchie.git-graph": "1.30.0",
      "MS-CEINTL.vscode-language-pack-zh-hans": "1.106.2025111209",
      "ms-vscode.cmake-tools": "1.21.36",
      "ms-vscode.cpptools-extension-pack": "1.3.1",
      "ms-vscode.cpptools-themes": "2.0.0",
      "trond-snekvik.gnu-mapfiles": "1.1.0",
      "vadimcn.vscode-lldb": "1.12.0"
    }
  }
}

BR,

Zero

[Einar Thorsrud]

I see. Then I suggest you first test with Windows 11 in the VM, as Windows 11 is fully supported. There are still no guarantees that it will work there though, as virtual machines is not directly supported (there are multiple vendors of virtualization and it can be configured in different ways, so it is difficult for us to support all combinations).