https://devzone.nordicsemi.com/f/nordic-q-a/38202/selective-dfu-over-meshHi, I have managed to run DFU mesh example and successfully updated firmware of whole mesh network. Now i am looking for options to perform customized DFU over mesh . Lets say a group of devices or a specific device. Is it possible ? If so pleaseen-USTelligent Community 13Wed, 05 Sep 2018 15:53:20 GMThttps://devzone.nordicsemi.com/thread/147430?ContentTypeID=1Wed, 05 Sep 2018 15:53:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2513fe4c-dfaa-4058-9325-ab8468f40381Hung Bui<p>Hi,&nbsp;</p> <p></p> <p>To customize an DFU update to a group of nodes, for now we can only select by using application_id.&nbsp;<br />This is the application_id in the bootloader_config .json file you used when you create the device page hex file.&nbsp;</p> <p>Different nodes in your setup can have different application id, for example light switch can have application id 2 when light bulb can have application id 3.&nbsp;</p> <p>When you want to update only light blubs, you generate DFU .zip package with the application_id = 3.&nbsp;</p> <p></p> <p>This solution, however, doesn&#39;t support grouping, for example it wouldn&#39;t cover the case where you only want to update light bulbs on 3rd floor for example.&nbsp;</p><div style="clear:both;"></div>