https://devzone.nordicsemi.com/f/nordic-q-a/54353/about-mesh-dfu-upgrade-multiple-devices-at-the-same-timeWith mesh dfu, whether to upgrade the firmware of many different devices at the same time is supported. Multiple device deployment spaces are adjacent, and simultaneous transmission of different firmwares will result in incorrect storage.en-USTelligent Community 13Fri, 15 Nov 2019 10:23:40 GMThttps://devzone.nordicsemi.com/thread/220260?ContentTypeID=1Fri, 15 Nov 2019 10:23:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:98d93b51-cb39-4a81-b2ec-183d2718a885Joakim Jakobsen<p>Hi.</p> [quote user=""]With mesh dfu, whether to upgrade the firmware of many different devices at the same time is supported.[/quote] <p>Yes, DFU of multiple devices at the same time is supported in BLE Mesh.&nbsp;</p> <p>More information about the DFU can be found in the <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v3.2.0/md_doc_libraries_dfu_dfu_protocol.html">Mesh DFU protocol</a> section.</p> <p>Best regards, <br />Joakim Jakobsen</p><div style="clear:both;"></div>