https://devzone.nordicsemi.com/f/nordic-q-a/79657/ppk-ii-with-nrfconnect-v3-7-1-power-profiler-v3-1-2-on-ubuntu-20-04-3I have been using the PPK II for about a month. I just upgraded my nRFConnect to 3.7.1 and when I run the profiler, the PPK II is no longer visible (the big green window on device is lit) I uninstalled/reinstalled Power Profiler v3.1.2, rebooted computeren-USTelligent Community 13Wed, 15 Sep 2021 07:11:18 GMThttps://devzone.nordicsemi.com/thread/329536?ContentTypeID=1Wed, 15 Sep 2021 07:11:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fd7ba51e-85a4-4207-a1d3-d2c0df83fb29H&#229;kon Alseth<p>Been there, done that..</p> <p>Glad to hear you got it running.</p> <p></p> <p>Hope you have a wonderful day!</p> <p></p> <p>Cheers,</p> <p>H&aring;kon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/329518?ContentTypeID=1Wed, 15 Sep 2021 01:03:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9625875c-b150-43ae-8acd-576b904ca720david224<p>Pls close, cockpit error.</p> <p>`lsusb` solved the problem.</p> <p>Really helps to plug into the Data/Power port.</p><div style="clear:both;"></div>