https://devzone.nordicsemi.com/f/nordic-q-a/37528/mesh-dfu-over-uartHi everyone. I&#39;m trying to transfer new firmware over UART for just only one node in mesh network. My node will connect to other wireless MCU(ESP32, ESP8266....) over serial port. In DFU example, Nordic use an application called nrf util. So,en-USTelligent Community 13Fri, 17 Aug 2018 15:51:53 GMThttps://devzone.nordicsemi.com/thread/144763?ContentTypeID=1Fri, 17 Aug 2018 15:51:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a55c661-3e5c-4081-a35e-0d2475269fdfhuybk213<p>Thank you Tesc</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/144589?ContentTypeID=1Thu, 16 Aug 2018 15:34:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e50eb123-de82-417d-9c6d-98f227627410tesc<p>Hi,</p> <p>There is the <a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.meshsdk.v2.1.1%2Fmd_mesh_bootloader_README.html">nRF5 SDK for Mesh Bootloader readme</a> file and the <a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.meshsdk.v2.1.1%2Fmd_doc_getting_started_dfu_quick_start.html">DFU quick start guide</a>, both of which gives an overview of the DFU process.</p> <p>We do have some (limited) DFU protocol documentation in the <a href="https://github.com/NordicPlayground/nRF51-ble-bcast-mesh/tree/master/docs/dfu">nRF51-ble-bcast-mesh</a> repository. That project is an early predecessor to our nRF5 SDK for Mesh, and the DFU protocol and process is the same.</p> <p>The <a href="https://github.com/NordicSemiconductor/pc-nrfutil/tree/mesh_dfu">nrfutil implementation</a> is also available, and can be used for reference.</p> <p>I think by using the protocol documentation and the nrfutil implementation as reference you should be able to make your own implementation.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>