https://devzone.nordicsemi.com/f/nordic-q-a/62123/nrf9160-debuggingHi, I am using nRf9160 with last sdk (master branch) and Segger Embedded studio V4.52. When I compile and run any program everything works, but when I try to debug the program I get an error: failed to set startup completion breakpoint: main symbolen-USTelligent Community 13Thu, 04 Jun 2020 13:55:57 GMThttps://devzone.nordicsemi.com/thread/253323?ContentTypeID=1Thu, 04 Jun 2020 13:55:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb00648b-63f2-41fc-adc4-7574e7a3c205Vidar Berg<p>Hi,</p> <p>I believe this may be related to the same issue reported in this thread: <a href="https://devzone.nordicsemi.com/f/nordic-q-a/62113/failed-to-set-startup-completion-breakpoint-main-symbol-not-found">https://devzone.nordicsemi.com/f/nordic-q-a/62113/failed-to-set-startup-completion-breakpoint-main-symbol-not-found.&nbsp;</a> Please try to load the symbols from the zephyr.elf as I suggested and see if that solves the problem for now. I&#39;ll continue to investigate this on my side.</p><div style="clear:both;"></div>