https://devzone.nordicsemi.com/f/nordic-q-a/26783/nrf52832-secure-uart-dfu-sdk-14-0-rttGreetings, One thing I&#39;ve noticed is that if I enable the RTT nRF_Log messages in the bootloader, then the RTT messages that are being sent out in my application do not appear on the J-Link RTT Viewer. Meanwhile if I disable the nRF_Log feature inen-USTelligent Community 13Fri, 10 Nov 2017 14:54:28 GMThttps://devzone.nordicsemi.com/thread/105284?ContentTypeID=1Fri, 10 Nov 2017 14:54:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a9050151-a77f-4a06-83a6-930c4bee0821Hung Bui<p>Hi Garen,</p> <p>After the change you applied, how did thing work ?</p> <p>What you described maybe a little bit different from what described <a href="https://devzone.nordicsemi.com/question/122629/rtt-logging-from-application-started-by-bootloader/">here</a>.</p> <p>In that case, if I don&#39;t open RTT viewer when the bootloader is running and wait until the application running, I still can see the RTT log from the application.</p> <p>Do you have this problem when you test with unmodified examples (DFU + normal SDK application) in the SDK ?</p><div style="clear:both;"></div>