https://devzone.nordicsemi.com/f/nordic-q-a/38992/mesh-sdk2-1-1-dfu-serial-host-questionI was able to follow the &quot;quick start&quot; guide for Mesh DFU and got things working with 3 nodes. 1 node (the serial host hooked to the PC) was programmed with: bin/softdevice/s140_nrf52_6.0.0_softdevice.hex bin/bootloader/gccarmemb/mesh_bootloader_gccarmemb_nrf52840_xxAAen-USTelligent Community 13Tue, 02 Oct 2018 13:26:58 GMThttps://devzone.nordicsemi.com/thread/151256?ContentTypeID=1Tue, 02 Oct 2018 13:26:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dafbc66b-5699-4225-8e9a-8c40858b6617bjorn-spockeli<p>Q1: Yes, using the application ID to distinguish between different type of firmware on different devices is the recommended solution.&nbsp;&nbsp;</p> <p>Q2: Yes, that sounds like the way to go.&nbsp;</p> <p>Q3: No, not that I am aware of.&nbsp;</p> <p>Best regards<br />Bjørn</p><div style="clear:both;"></div>