https://devzone.nordicsemi.com/f/nordic-q-a/72441/jlink---nrf52832-communicaton-failureHello, I have several custom 52832 bords that until recently worked fine with SDK15. Yestrday I started experimenting with nrfConnect and flashed some Zephyr examples. It looks like an erroneous bin file used and now JLink cannot communicate withen-USTelligent Community 13Sat, 06 Mar 2021 16:44:15 GMThttps://devzone.nordicsemi.com/thread/298213?ContentTypeID=1Sat, 06 Mar 2021 16:44:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:11ab4efb-dc93-4ffb-94ed-4a6ff2fd0938Thanos<p>ok, I think it&#39;s fixed now.</p> <p>By using another JLink interface (the one embedded in the nrf91DK) the message &quot;Could not power-up debug power domain&quot; showed up. So, after digging into the relevant threads the trick was first to wire the debugger and then pulse low nRESET line (LDO mode is forced during&nbsp;DEBUG). After that JLink had no problems communicating with 52832; erase, flash, and power-cycle restored everything back.</p><div style="clear:both;"></div>