https://devzone.nordicsemi.com/f/nordic-q-a/118859/can-t-flash-nrf52832-custom-board-using-nrf-connect-vscode-extensionCan,t flash nRF52832 custom board using nrf connect vscode extension im trwing to use nRFconnect for my project, im using fade_led from example and got this error i try run the &quot;nrfjprog --program &#39;c:\Users\MIkhwanD\fade_led\build\zephyr\zephyr.hexen-USTelligent Community 13Thu, 13 Feb 2025 07:53:29 GMThttps://devzone.nordicsemi.com/thread/522781?ContentTypeID=1Thu, 13 Feb 2025 07:53:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca0fcab0-1b39-46e6-891b-176f8dff776bMID<p>Ohhh, I see. It&#39;s because of the clone J-Link debugger.</p> <p>Alright, I will get the original one. Thank you for your help H&aring;kon <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f603.svg" title="Smiley">&#x1f603;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/522630?ContentTypeID=1Wed, 12 Feb 2025 11:52:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e07cff46-feb1-4444-b246-d2ac786b87f9H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>This indicates a incorrect serial number of your debugger:</p> <p><pre class="ui-code" data-mode="text">[2025-Feb-12 13:50:04] [trace] [ JLink] - Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46 [2025-Feb-12 13:50:04] [trace] [ JLink] - Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46 [2025-Feb-12 13:50:04] [trace] [ JLink] - Hardware: V8.00 [2025-Feb-12 13:50:04] [trace] [ JLink] - S/N: 4294967295</pre></p> <p>&nbsp;Please see this thread:</p> <p>&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/76505/nrfjprog-jlinkarm-dll-reported-an-error-jlinkarm-dll-reported--1-an-unknown-error">Nrfjprog | JLinkARM DLL reported an error | JLinkARM.dll reported &quot;-1&quot;, an unknown error.</a>&nbsp;</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>