Power Profiler Kit II not showing with Power Profiler App newer than 4.3.0 on Mac

[tellicious]

I'm trying to use a Power Profiler Kit II with a Mac running Ventura 13.7.8. If I update the Power Profiler App to v4.3.0 or v4.3.1 the PPK II is not detected and this is the log:

2025-11-22T20:41:25.794Z INFO Initialising the bundled nrfutil device
2025-11-22T20:41:25.799Z DEBUG Application data folder: /Users/Andre/Library/Application Support/nrfconnect/pc-nrfconnect-ppk
2025-11-22T20:41:25.849Z DEBUG App pc-nrfconnect-ppk v4.3.1 (official)
2025-11-22T20:41:25.850Z DEBUG App path: /Users/Andre/.nrfconnect-apps/node_modules/pc-nrfconnect-ppk
2025-11-22T20:41:25.850Z DEBUG nRFConnect 5.2.0, required by the app is (>=5.2.0)
2025-11-22T20:41:25.850Z DEBUG nRFConnect path: /Applications/nRF Connect for Desktop.app/Contents/Resources/app.asar
2025-11-22T20:41:25.850Z DEBUG HomeDir: /Users/Andre
2025-11-22T20:41:25.850Z DEBUG TmpDir: /var/folders/d3/xz2s2ly12d95_53v5b_b7d580000gn/T/
2025-11-22T20:41:25.904Z DEBUG Sending event "ppk: running nrfutil device"
2025-11-22T20:41:27.846Z DEBUG Sending event "ppk: running nrfutil device"
2025-11-22T20:41:29.644Z INFO Successfully installed nrfutil core version: 8.0.0
2025-11-22T20:41:29.645Z DEBUG Sending event "ppk: running nrfutil device"
2025-11-22T20:41:30.419Z ERROR Error: Failed with exit code 1.
Failed to query for package 'nrfutil-device' on package index - aborting before uninstall

Caused by:
    0: HTTP Transport Error https://files.nordicsemi.com/artifactory/swtools/external/nrfutil/index/x86_64-apple-darwin/nrfutil-device: Connection Failed: tls connection init failed: invalid peer certificate: UnknownIssuer
    1: https://files.nordicsemi.com/artifactory/swtools/external/nrfutil/index/x86_64-apple-darwin/nrfutil-device: Connection Failed: tls connection init failed: invalid peer certificate: UnknownIssuer
    2: invalid peer certificate: UnknownIssuer

2025-11-22T20:41:30.419Z ERROR Error while installing nrfutil device version 2.10.2: Error: Failed with exit code 1.
Failed to query for package 'nrfutil-device' on package index - aborting before uninstall

Caused by:
    0: HTTP Transport Error https://files.nordicsemi.com/artifactory/swtools/external/nrfutil/index/x86_64-apple-darwin/nrfutil-device: Connection Failed: tls connection init failed: invalid peer certificate: UnknownIssuer
    1: https://files.nordicsemi.com/artifactory/swtools/external/nrfutil/index/x86_64-apple-darwin/nrfutil-device: Connection Failed: tls connection init failed: invalid peer certificate: UnknownIssuer
    2: invalid peer certificate: UnknownIssuer

With version 4.2.2 and earlier it works perfectly fine, though. What could be the issue?

Thanks

Andrea

[tellicious]

I think I solved it. It was due to an old certificate totally unrelated with nRFConnect that was corrupted. Still cannot understand why the app was getting stuck

[Ariel19]

Hi tellicious,

The issue isn’t your PPK II—it’s that versions 4.3.0+ of the app can’t download nrfutil-device due to a TLS certificate error (invalid peer certificate: UnknownIssuer). You could try updating macOS certificates, using a different network, or manually installing nrfutil-device. Otherwise, version 4.2.2 still works fine. Retro Bowl