https://devzone.nordicsemi.com/f/nordic-q-a/70050/nrf52840-on-custom-board-won-t-run-without-jlink-debuggerI am trying to run nrf52840 chip without debugger. I want to run peripheral_uart example just to show advertising of bluetooth. And when I use west debug --runner=jlink , it works, and just by applying power on chip, it doesn&#39;t advertise bluetoothen-USTelligent Community 13Wed, 06 Jan 2021 07:59:05 GMThttps://devzone.nordicsemi.com/thread/287633?ContentTypeID=1Wed, 06 Jan 2021 07:59:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:83b74df4-1b16-4779-bb93-929a22f5dc07Jared<p>Good! <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/287518?ContentTypeID=1Tue, 05 Jan 2021 13:24:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d553ccd-de3c-4ea7-b016-0b7be217132dnikola<p>Thank you so much, that worked, it is advertising now without debugger.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/287250?ContentTypeID=1Mon, 04 Jan 2021 13:34:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:17e6becf-0f21-49e0-95be-d89e1dddade3Jared<p>Hi,</p> <p>Do you have an external DC-DC filter? The examples by default uses the external DC-DC filter. I would expect the application to stall if the filter isn&#39;t present. Could you try what is purposed in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/65566/my-nrf52840-can-t-boot-up-after-power-on-unless-it-was-connected-to-jlinkrttview/268625#268625">this similar thread</a>.</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>