https://devzone.nordicsemi.com/f/nordic-q-a/125772/power-profiler-kit-ii-not-showing-with-power-profiler-app-newer-than-4-3-0-on-macI&#39;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: With version 4.2.2 and earlier it works perfectly fine, though. Whaten-USTelligent Community 13Wed, 26 Nov 2025 02:22:05 GMThttps://devzone.nordicsemi.com/thread/555433?ContentTypeID=1Wed, 26 Nov 2025 02:22:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:485c676e-bcdb-4c21-a721-9008b5b2a9abAriel19<p data-start="55" data-end="71">Hi tellicious,</p> <p data-start="73" data-end="401">The issue isn&rsquo;t your PPK II&mdash;it&rsquo;s that versions 4.3.0+ of the app can&rsquo;t download <code data-start="153" data-end="169">nrfutil-device</code> due to a TLS certificate error (<code data-start="202" data-end="243">invalid peer certificate: UnknownIssuer</code>). You could try updating macOS certificates, using a different network, or manually installing <code data-start="339" data-end="355">nrfutil-device</code>. Otherwise, version 4.2.2 still works fine. <span style="color:#ffffff;"><a style="color:#ffffff;" href="https://retrobowlplus.com">Retro Bowl</a></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/555116?ContentTypeID=1Sun, 23 Nov 2025 09:32:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ec31f8ab-2f6b-48fd-a0b1-6253dbd61335tellicious<p>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</p><div style="clear:both;"></div>