https://devzone.nordicsemi.com/f/nordic-q-a/78059/problem-with-nrfjprogHi The Zephyr mesh_demo project has been built correctly but I&#39;m facing a problem when I flash it C:\Users\OMAR\zephyrproject\zephyr\samples\bluetooth\mesh_demo&gt; west flashen-USTelligent Community 13Sat, 31 Jul 2021 08:45:48 GMThttps://devzone.nordicsemi.com/thread/322742?ContentTypeID=1Sat, 31 Jul 2021 08:45:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a8dcce3c-06c7-4012-9c93-857904896483Omar<p>yes I&#39;m programming nr52832 DK and nRF 52840 DK</p> <p>and the problem happens with the other example also</p> <p>I have tried&nbsp;<span>nrfjprog --recover and it working now&nbsp;</span></p> <p><span>thank you</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/322692?ContentTypeID=1Fri, 30 Jul 2021 14:15:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5b5a3f30-c7ae-4421-803f-055f6bd1b118Vidar Berg<p>Hi,</p> <p>Are you programming a Nordic Development kit, or a custom board? Also, have you tried other examples to see if the issue might be limited to this particular example?</p> <p>You may also want to try to run &#39;nrfjprog --recover &amp;&amp; nrfjprog --readregs&#39;. If that doesn&#39;t work either, then it&#39;s likely a communication problem with the chip, which could be caused by wrong voltage levels or a bad connection.&nbsp;</p><div style="clear:both;"></div>