https://devzone.nordicsemi.com/f/nordic-q-a/62030/programming-nrf52480-across-serial-link-with-no-osI have a device with no OS on it that talks serial through a UART to a nRF53840. I need to be able to update the nRF53840&#39;s firmware across the serial link, but since I don&#39;t have an OS I can&#39;t use the normal tools such as NRFJPROG of NRFCONNECT. Canen-USTelligent Community 13Tue, 02 Jun 2020 15:41:09 GMThttps://devzone.nordicsemi.com/thread/252810?ContentTypeID=1Tue, 02 Jun 2020 15:41:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c6c9e0c2-b4f9-4193-8e63-b42a283a5067J&#248;rgen Holmefjord<p>Hi,</p> <p>You can reference the example in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/11308/reference-for-dfu-over-serial/181138#181138">this post</a>.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>