https://devzone.nordicsemi.com/f/nordic-q-a/125559/logging-problems-with-nrf52840-dkI&#39;m using the Nordic nRF52840-DK. I&#39;m having a hard time with logging using RTT. Sometimes it works, sometimes it does not. Usually I get a few runs where it works, then it stops. At that point I usually have to restart VSCode and maybe it will starten-USTelligent Community 13Wed, 12 Nov 2025 10:04:02 GMThttps://devzone.nordicsemi.com/thread/554087?ContentTypeID=1Wed, 12 Nov 2025 10:04:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c0d40125-0ae5-4654-9a6f-fe1a41353957Priyanka<p>Hi Tim,</p> <p>Which sample are you working with? Also, which SDK version?</p> <p>The Dongle prints over UART, which is independent of J-Link, but he DK’s RTT goes through the on-board J-Link OB&nbsp;and so any J-Link driver/firmware/process weirdness shows up sometimes as “no logs.”</p> <p>I would suggest you to not open the RTT Viewer and VSCode RTT terminal together, i.e. try using only one host tool at a time. Also, try to keep your JLink updated.</p> <p>-Priyanka</p><div style="clear:both;"></div>