https://devzone.nordicsemi.com/f/nordic-q-a/95714/nrfconnect-sdk-buttonless-dfuI&#39;ve been looking into how to add butonless dfu to my application but so far all the examples I&#39;ve found either require booting into DFU mode and only advertising the SMP service or the nRF5 SDK. https://devzone.nordicsemi.com/guides/short-range-guidesen-USTelligent Community 13Tue, 17 Jan 2023 03:48:50 GMThttps://devzone.nordicsemi.com/thread/405139?ContentTypeID=1Tue, 17 Jan 2023 03:48:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f82f5bc9-415b-4cb9-b127-96235dc7f1afAnton Maes<p>Thanks.&nbsp;<br /><br />I think this was what I was needing in order to understand a bit more how SMP works wrt uploading and and chanigng the firmware&nbsp;</p> <p><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/subsys/mgmt/mcumgr/smp_svr/README.html#smp-svr-sample">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/subsys/mgmt/mcumgr/smp_svr/README.html#smp-svr-sample</a><br /><br />I also probably need to start reading up on matter&nbsp;<br /><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.0.0/matter/nrfconnect_examples_software_update.html">developer.nordicsemi.com/.../nrfconnect_examples_software_update.html</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/404981?ContentTypeID=1Mon, 16 Jan 2023 10:13:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84ffd6b2-5ec4-4b0b-a508-947ff7f6a16cSigurd Hellesvik<p>Hi,</p> <p>First, I will specify some things for my following explanation:</p> <p>An SMP Server is a server running on the device to receive an DFU update.</p> <p>The SMP Server can either run in the Application or in MCUboot:<br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1673863539243v1.png" alt=" " /></p> <p>Image from my <a href="https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/serial_recovery">unofficial bootloader guide</a>.</p> <p>In the nRF Connect SDK we do not have support for Bluetooth Low Energy in the bootloader.<br />Therefore, if you want to do DFU over Bluetooth Low Energy, I recommend that you run the SMP Server in your Application.</p> <p>I do not think that I answered your question directly, but I hope it gave some insight either way.<br />Let me know if you have more questions</p> <p>Regards,<br />Sigurd Hellesvik</p><div style="clear:both;"></div>