https://devzone.nordicsemi.com/f/nordic-q-a/91794/ppk2-cannot-be-reprogrammedI&#39;ve got a PPK2 kit which I am using for quite some time now. Today I upgraded nRF Connect Desktop and the Power Profiler App which gave me the following versions: nRF for Desktop v3.12.0 Power Profiler App v3.4.4 PPK II Hardware: PCA63100,en-USTelligent Community 13Thu, 08 Sep 2022 22:58:37 GMThttps://devzone.nordicsemi.com/thread/385397?ContentTypeID=1Thu, 08 Sep 2022 22:58:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b37ff283-3fbd-4e83-afab-88c237e4f0fbFlorian<p>Ok, I managed to resolve the problem like this (just documenting the fix in case someone else stumbles upon this same problem):</p> <p>* I downloaded&nbsp;<a id="" href="https://github.com/NordicSemiconductor/pc-nrfconnect-ppk/blob/main/firmware/pca63100_ppk2_5e7cc60.hex">https://github.com/NordicSemiconductor/pc-nrfconnect-ppk/blob/main/firmware/pca63100_ppk2_5e7cc60.hex</a></p> <p>* I followed the instructions in&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/75163/ppk2-not-turning-on/309793">RE: PPK2 not turning on</a>&nbsp;to put the PPK2 in bootloader mode.</p> <p>* I opened the Programmer App in nRF Connect Desktop, selected the PPK2 device and added the firmware file there.</p> <p>* I used the Programmer to flash (&quot;Write&quot;) the firmware.</p> <p>* I returned to the Power Profiler App there, selected the device and everything works fine now.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/385392?ContentTypeID=1Thu, 08 Sep 2022 22:07:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:49325f06-229e-4569-9e60-9aa0049f77fcFlorian<p>Opening the device in the programmer looks like this</p> <p></p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/Bildschirmfoto-vom-2022_2D00_09_2D00_09-00_2D00_03_2D00_16.png" alt=" " /></p><div style="clear:both;"></div>