https://devzone.nordicsemi.com/f/nordic-q-a/46842/nrf52840-soc-bootloaderHello, I have a following requirements, Build a custom bootloader which accepts DFU through OTA and UART. this boot loader must also contain softdevice , so that finally there is only one hex file. Using this hex file DFU can be done through OTAen-USTelligent Community 13Thu, 02 May 2019 13:06:38 GMThttps://devzone.nordicsemi.com/thread/184910?ContentTypeID=1Thu, 02 May 2019 13:06:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:684f2f59-efe6-4839-a43f-123bf127e28bGourav<p>Hello Vidar,</p> <p>I have gone though the link its mentioned dfu through ota but not through uart.</p> <p>suggest some examples for dfu through uart.</p> <p></p> <p>Regards,</p> <p>Gourav</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/184895?ContentTypeID=1Thu, 02 May 2019 12:32:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:77f5b0e0-28ff-4c10-885c-a164bcf454feVidar Berg<p>Hello,</p> <p>I&#39;d recommend you to read this blog post to get an overview of our DFU implementation if you haven&#39;t done it already:&nbsp;<a href="https://devzone.nordicsemi.com/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader">https://devzone.nordicsemi.com/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader</a>&nbsp;</p> <p>We don&#39;t have an example that combines both BLE and UART, but it&#39;s possible.&nbsp;You can select one of the bootloaders, then&nbsp;add another transport layer.&nbsp;</p> <p>Regards,</p> <p>Vidar</p><div style="clear:both;"></div>